Homework Answers
QUESTION: 65
ANSWER: (D) Protons and neutrons
REASON: An atom comprised of a nucleus and one or a lot of electrons joined to the nucleus. The nucleus of the associate atom contains protons and neutrons. Protons associated electrons are present in an atom not the nucleus of an atom. Electrons are surrounding the nucleus. Protons and neutrons are present in the nucleus.
QUESTION: 66
ANSWER: (C) The number of protons it has
REASON: The number of protons in an atom represents the atomic number of an atom. For example, 6 protons are present in the carbon atom then the atomic number of carbon is 6. The number of electrons in an atom is equal to the number of protons in an atom. The number of neutrons is the difference between the atomic number and the mass number of atom.
QUESTION: 67
ANSWER: (A),(B)
REASON: The oxygen drags electrons thoroughly than the hydrogen nucleus that's by the hydrogen has a partial positive charge and oxygen has a partial negative charge. The hydrogen doesn't become full positive charge and oxygen doesn't become a fully positive charge.
QUESTION: 68
ANSWER: (C) Amino terminus
REASON: The pattern of amino acid in the polypeptide chain is the primary structure of a protein. Amino terminus is liable for the production of the primary structure of the protein. The beta-sheet is not the primary structure it is the secondary structure of a protein. The other options are not the primary structure to form the protein.
QUESTION: 69
ANSWER: (B) Two
REASON: Two electrons are involved in the formation of a single covalent bond. Four electrons are shared in the formation of a double covalent bond. Six electrons are shared in the formation of a triple covalent bond.
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65) The nucleus of an atom contains: a) protons and electrons b) just electrons c) electrons and neutrons d) proton...
1. An atom of Indium-112 contains 49 protons, 63 neutrons, 49 electrons. b. 49 protons, 49...
1. An atom of Indium-112 contains 49 protons, 63 neutrons, 49 electrons. b. 49 protons, 49 neutrons, 49 electrons. c. 49 protons, 49 alpha particles d. 49 protons, 63 neutrons. 2. Which of the following atomic symbols is incorrect? d. 3. How many atoms of hydrogen are present in 6.43 g of NH? a. 2.27 x 10 b. 1.28 x 10 1.16x 10 d. 6.82 10 4. A 2.55 ml sample of ethylene glycol antifreeze) has a mass of 2.83...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons . Which of the following would have the largest size? a) an atom b) a molecule c) a proton d) a neutron e) an electron 3. Isotopes of an element differ in the number of a) protons in the nucleus b) electrons in the nucleus © neutrons in the nucleus d) electron clouds e) energy levels they contain 4. VO The atomic number represents...
The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a...
The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a carbon-12 isotope contains six protons and six neutrons, while a nitrogen-14 nucleus comprises seven protons and seven neutrons. You perform a nuclear physics experiment in which you bombard nitrogen-14 nuclei with very high speed carbon-12 nuclei emerging from a particle accelerator. As a result of each such collision, the two nuclei disintegrate completely and a mix of different particles are emitted, including electrons, protons,...
1. Protons share the dense nucleus with a. nucleus b. molecules c. electrons d. atoms ______2....
1. Protons share the dense nucleus with a. nucleus b. molecules c. electrons d. atoms ______2. Electrons are a. sub-atomic particles with a +1 charge b. equal to the number of protons in a nucleus c. said to be charmed d. sub-atomic particles with a +2 charge ____3. The force that binds 2 or more atoms together is known as a. a chemical bond b. valence c. joules d. electromagnetsm ______4. A molecular formula a. gives the total number of...
Are the basic units of matter: a) Elements b) Atoms c) Electrons d) Protons e) Neutrons...
Are the basic units of matter: a) Elements b) Atoms c) Electrons d) Protons e) Neutrons Has a negative charge: a) Elements b) Atoms c) Electrons d) Protons e) Neutrons Whether an atom will interact with other atoms depends on how many electrons it has. a) True b) False How many electrons are in the second orbital of an atom? a) 2 b) 6 c) 8 d) 4 e) 10 How many Hydrogen atoms does a water molecule have? a)...
A helium atom contains two protons, two neutrons, and two electrons, and it is electrically neutral....
A helium atom contains two protons, two neutrons, and two electrons, and it is electrically neutral. Each proton contains two up quarks and one down quark, and each neutron contains two down quarks and one up quark. Electrons have a charge of -e, up quarks have a charge of +2e/3, and down quarks have a charge of -1e/3. (a) How much positive charge is contained in the nucleus? с (b) How much negative charge is contained in the nucleus (absolute...
Atomic number c. Valance electrons d. Orbits e. Neutrons Indicate whether each of the following statements...
Atomic number c. Valance electrons d. Orbits e. Neutrons Indicate whether each of the following statements about atomic structure is true or false. a. A neutral oxygen atom has 8 electrons located in 2 different electron orbitals. T/F b. Hydrogen has only one neutron and no protons in its nucleus. T/F c. Almost all of the mass of an atom is concentrated in its electrons. T/F d. The reactivity or chemical behavior of an atom depends primarily on the number...
The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a carbon-12 isotope contains six p...
The nucleus of an atom consists of protons and neutrons (no
electrons). A nucleus of a carbon-12 isotope contains six protons
and six neutrons, while nitrogen-14 nucleus comprises seven protons
and seven neutrons. You perform a nuclear physics experiment in
which you bombard nitrogen-14 nuclei with very high speed carbon-12
nuclei emerging from a particle accelerator.
..ll T-Mobile 2:05 PM 29% 12) of the four elements most prevalent in living organisms, which...
..ll T-Mobile 2:05 PM 29% 12) of the four elements most prevalent in living organisms, which element makes up the highest percentage? A) sulfur B) sodium C) oxygen D) potassium E) carbon 13) An atom of an element has atomic number of 6 and mass number of 14. From this information, we can determine that the nucleus has : A) 6 protons. B) 8 electrons. C) 8 neutrons. D) 6 protons and 8 electrons. E) 6 protons and 8 neutrons....
Both protons and neutrons have a magnetic moment. Unless the nucleus contains an even number of...
Both protons and neutrons have a magnetic moment. Unless the nucleus contains an even number of protons and an even number of neutrons, the atomic nucleus has a net magnetic moment. A nucleus must have a net magnetization for it to be discernible using magnetic resonance spectroscopy. From the list below circle possible candidates for magnetic resonance spectroscopy (you may need to look at a periodic table, unless specified otherwise choose the most abundant isotope for each element ): Carbon¹³ ...
1. An atom of Indium-112 contains 49 protons, 63 neutrons, 49 electrons. b. 49 protons, 49 neutrons, 49 electrons. c. 49 protons, 49 alpha particles d. 49 protons, 63 neutrons. 2. Which of the following atomic symbols is incorrect? d. 3. How many atoms of hydrogen are present in 6.43 g of NH? a. 2.27 x 10 b. 1.28 x 10 1.16x 10 d. 6.82 10 4. A 2.55 ml sample of ethylene glycol antifreeze) has a mass of 2.83...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons . Which of the following would have the largest size? a) an atom b) a molecule c) a proton d) a neutron e) an electron 3. Isotopes of an element differ in the number of a) protons in the nucleus b) electrons in the nucleus © neutrons in the nucleus d) electron clouds e) energy levels they contain 4. VO The atomic number represents...
The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a carbon-12 isotope contains six protons and six neutrons, while a nitrogen-14 nucleus comprises seven protons and seven neutrons. You perform a nuclear physics experiment in which you bombard nitrogen-14 nuclei with very high speed carbon-12 nuclei emerging from a particle accelerator. As a result of each such collision, the two nuclei disintegrate completely and a mix of different particles are emitted, including electrons, protons,...
Are the basic units of matter: a) Elements b) Atoms c) Electrons d) Protons e) Neutrons Has a negative charge: a) Elements b) Atoms c) Electrons d) Protons e) Neutrons Whether an atom will interact with other atoms depends on how many electrons it has. a) True b) False How many electrons are in the second orbital of an atom? a) 2 b) 6 c) 8 d) 4 e) 10 How many Hydrogen atoms does a water molecule have? a)...
A helium atom contains two protons, two neutrons, and two electrons, and it is electrically neutral. Each proton contains two up quarks and one down quark, and each neutron contains two down quarks and one up quark. Electrons have a charge of -e, up quarks have a charge of +2e/3, and down quarks have a charge of -1e/3. (a) How much positive charge is contained in the nucleus? с (b) How much negative charge is contained in the nucleus (absolute...
Atomic number c. Valance electrons d. Orbits e. Neutrons Indicate whether each of the following statements about atomic structure is true or false. a. A neutral oxygen atom has 8 electrons located in 2 different electron orbitals. T/F b. Hydrogen has only one neutron and no protons in its nucleus. T/F c. Almost all of the mass of an atom is concentrated in its electrons. T/F d. The reactivity or chemical behavior of an atom depends primarily on the number...
The nucleus of an atom consists of protons and neutrons (no
electrons). A nucleus of a carbon-12 isotope contains six protons
and six neutrons, while nitrogen-14 nucleus comprises seven protons
and seven neutrons. You perform a nuclear physics experiment in
which you bombard nitrogen-14 nuclei with very high speed carbon-12
nuclei emerging from a particle accelerator.
..ll T-Mobile 2:05 PM 29% 12) of the four elements most prevalent in living organisms, which element makes up the highest percentage? A) sulfur B) sodium C) oxygen D) potassium E) carbon 13) An atom of an element has atomic number of 6 and mass number of 14. From this information, we can determine that the nucleus has : A) 6 protons. B) 8 electrons. C) 8 neutrons. D) 6 protons and 8 electrons. E) 6 protons and 8 neutrons....
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