Homework Answers
The nucleus is made of proton and neutron in small volume. That's why nucleus is highly dence. Outer electrons are in orbitals. This place is mostly vacant. So statement 1 is true.
Mass of the atom is summation of mass of proton and neutron. These are in nucleus. So mass is concentrated in nucleus. Statement 2 is true.
As already said statement 3 is true.
Statement 4 is not true. For neutral atom number of proton and neutron mag vary. Simply neutral hydrogen atom has 1 proton but no neutron.
So correct answer is option 4
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QUESTION 15 Which one of the following statements about atomic structure is false? An atom is...
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...
which of the following statements about isotopes is false Which of the following statements about isotopes...
which of the following statements about isotopes is
false
Which of the following statements about isotopes is false? Select one: O a. An isotope with more neutrons will have a greater mass than an isotope with fewer neutrons. O b. All of the above are true. c. Isotopes are atoms with same number of protons but different numbers of neutrons. d. Isotopes are atoms with the same atomic number but different mass numbers. O e. Most elements naturally have more...
Which of these statements is true? The number of electrons outside the nucleus is the same...
Which of these statements is true? The number of electrons outside the nucleus is the same as the number of neutrons in the nucleus. The mass number of an atom is the number of protons plus the number of neutrons. The atomic number of an atom is the number of valence electrons outside the nucleus. In an ion, the number of electrons must be equal to the number of protons.
26 Which statement is NOT TRUE? (A) Every atom of a given element has the same...
26 Which statement is NOT TRUE? (A) Every atom of a given element has the same number of protons. (B) Almost all of the mass of an atom is located in the nucleus. (C) A given chemical species doesn't always have the same type and number of atoms. (D) The large cloud region of the atom contains electrons, which are 50% of the mass of the aton (E) Different isotopes of the same element have different numbers of neutrons.
1. An atom of nitrogen with a mass number of 15 and an atomic number of...
1. An atom of nitrogen with a mass number of 15 and an atomic number of 7 has a total of neutrons. 2. An atom of potassium with a mass number of 39 and an atomic number of 19 has a total of neutrons 13 17 18 15 19 20 24 35 3. An atom of aluminum with a mass number of 24 and an atomic number of 13 has a total of neutrons. 4. An atom of oxygen with...
Electronic Structure of the Atom Indicate which of the following statements about the electronic structure of...
Electronic Structure of the Atom Indicate which of the following statements about the electronic structure of the atom is true or false. - For the hydrogen atom, all of the subshells in a shell have the same energy. - All subshells accommodate the same number of electrons. - The first shell is made up of two subshells. - An s orbital is spherical in shape. - All of the orbitals in a subshell have the same energy.
Ul Tuise. iSUlBpes are atoms of the same element that have the same atomic number but different mass numbers. A. True B. False 9. The table below describes four atoms. Atom B 81 120 81 Atom C 80 1...
Ul Tuise. iSUlBpes are atoms of the same element that have the same atomic number but different mass numbers. A. True B. False 9. The table below describes four atoms. Atom B 81 120 81 Atom C 80 118 80 Atom D 79 120 79 Atom A 79 118 79 Number of protons Number of neutrons Number of electrons Which atoms represent the same element?
Ul Tuise. iSUlBpes are atoms of the same element that have the same atomic number...
Which of the following is NOT one of the six elements that make up 95% of...
Which of the following is NOT one of the six elements that make up 95% of the body weight of organisms? OA) Hydrogen OB) Nitrogen Oc) Carbon OD) Iron Which of the following statements is true? OA) All isotopes give off subatomic particles. OB) All isotopes are radioactive. Oc) All isotopes have the same number of protons. OD) All isotopes have the same number of neutrons. What type of bond is formed when atoms share electrons? OA) lonic OB) Covalent...
11) Which of the following statements is correct? A) The atomic number = the number of...
11) Which of the following statements is correct? A) The atomic number = the number of protons, the mass number = the number of protons + the number of electrons B) The atomic number = the number of protons, the mass number = the number of protons + the number of neutrons C) The atomic number = the number of protons, thą mass number = the number of neutrons D) The atomic number = the number of neutrons, the mass...
1) Which statement concerning the structure of the atom is correct A) Protons and Neutrons have...
1) Which statement concerning the structure of the atom is correct A) Protons and Neutrons have most of the mass and occupy C) Electron have most of the mass and occupy very little of the volume of the atom B) Electron have most of the mass and occupy most of the volume of the atom most of the volwne of D) Protons and Neutrons have most of the mass but occupy very little of the volume of the atom 2)...
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...
which of the following statements about isotopes is
false
Which of the following statements about isotopes is false? Select one: O a. An isotope with more neutrons will have a greater mass than an isotope with fewer neutrons. O b. All of the above are true. c. Isotopes are atoms with same number of protons but different numbers of neutrons. d. Isotopes are atoms with the same atomic number but different mass numbers. O e. Most elements naturally have more...
Which of these statements is true? The number of electrons outside the nucleus is the same as the number of neutrons in the nucleus. The mass number of an atom is the number of protons plus the number of neutrons. The atomic number of an atom is the number of valence electrons outside the nucleus. In an ion, the number of electrons must be equal to the number of protons.
26 Which statement is NOT TRUE? (A) Every atom of a given element has the same number of protons. (B) Almost all of the mass of an atom is located in the nucleus. (C) A given chemical species doesn't always have the same type and number of atoms. (D) The large cloud region of the atom contains electrons, which are 50% of the mass of the aton (E) Different isotopes of the same element have different numbers of neutrons.
1. An atom of nitrogen with a mass number of 15 and an atomic number of 7 has a total of neutrons. 2. An atom of potassium with a mass number of 39 and an atomic number of 19 has a total of neutrons 13 17 18 15 19 20 24 35 3. An atom of aluminum with a mass number of 24 and an atomic number of 13 has a total of neutrons. 4. An atom of oxygen with...
Ul Tuise. iSUlBpes are atoms of the same element that have the same atomic number but different mass numbers. A. True B. False 9. The table below describes four atoms. Atom B 81 120 81 Atom C 80 118 80 Atom D 79 120 79 Atom A 79 118 79 Number of protons Number of neutrons Number of electrons Which atoms represent the same element?
Ul Tuise. iSUlBpes are atoms of the same element that have the same atomic number...
Which of the following is NOT one of the six elements that make up 95% of the body weight of organisms? OA) Hydrogen OB) Nitrogen Oc) Carbon OD) Iron Which of the following statements is true? OA) All isotopes give off subatomic particles. OB) All isotopes are radioactive. Oc) All isotopes have the same number of protons. OD) All isotopes have the same number of neutrons. What type of bond is formed when atoms share electrons? OA) lonic OB) Covalent...
11) Which of the following statements is correct? A) The atomic number = the number of protons, the mass number = the number of protons + the number of electrons B) The atomic number = the number of protons, the mass number = the number of protons + the number of neutrons C) The atomic number = the number of protons, thą mass number = the number of neutrons D) The atomic number = the number of neutrons, the mass...
1) Which statement concerning the structure of the atom is correct A) Protons and Neutrons have most of the mass and occupy C) Electron have most of the mass and occupy very little of the volume of the atom B) Electron have most of the mass and occupy most of the volume of the atom most of the volwne of D) Protons and Neutrons have most of the mass but occupy very little of the volume of the atom 2)...
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