Which of the following is true? A. All atoms (in their most commonly occurring form) have...
Which of the following is true?
A. All atoms (in their most commonly occurring form) have the same number of neutrons and protons.
B. Most atoms (in their most commonly occurring form) have the same number of neutrons and protons.
C. Only a few atoms (in their most commonly occurring form) have the same number of neutrons and protons.
D. No atoms (in their most commonly occurring form) have the same number of neutrons and protons.
Homework Answers
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Which of the following is true?
A. All atoms (in their most commonly occurring form) have...
Which statements are inconsistent with Rutherford's nuclear theory that was originally stated? a) Helium atoms have...
Which statements are inconsistent with Rutherford's nuclear theory that was originally stated? a) Helium atoms have two protons in the nucleus and two electrons outside the nucleus. b) Most of the volume of hydrogen atoms is due to the nucleus. c) Aluminum atoms have 13 protons in the nucleus and 22 electrons outside the nucleus. d) The majority of the mass of nitrogen atoms is due to their 7 electrons. Protons, Neutrons, and Electrons 9) Which statement about protons is...
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...
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...
20) Which statement is NOT true about ionic bonds? A) An ionic bond occurs between positive...
20) Which statement is NOT true about ionic bonds? A) An ionic bond occurs between positive ions and negative ions. B) Electrons are completely lost or gained in ion formation An ion has the same number of electrons as a nonionic atom of the same element. D) A salt such as NaCl is formed by an ionic reaction. 21) Which of the following would be a proposed mechanism by which stomach antacids work? A) Antacids are bases and by definition...
Isotope 2. Which of the following statements about isotopes is/are correct? (a) "Br and 8'Br have...
Isotope 2. Which of the following statements about isotopes is/are correct? (a) "Br and 8'Br have the same number of neutrons. (b) 'N and "SN have the same number of protons. (c) "O has the same number of neutrons and protons. (d) Answers (a) and (b) (e) Answers (a), (b) and (c) 3. How many nitrogen atoms are present in 0.250 mol of hydrazine (N2H4)? (a) 1.51 x 1022 nitrogen atoms (b) 3.01 x 1022 nitrogen atoms (c) 7.53 x...
all 6. Which combination of atoms is most likely to form an ionic compound if they...
all
6. Which combination of atoms is most likely to form an ionic compound if they are allowed to react with each other? A) metal and metal B) metal and nonmetal C) nonmetal and nonmetal D) metalloid and metalloid E) All combinations are likely to form an ionic compound. 7. A covalent bond involves which of the following? A) sharing of electrons between two atoms B) transfer of electrons between two atoms C) donation of protons from one atom to...
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)...
II. Isotopes Atoms of a given element all have the same number of protons and electrons,...
II. Isotopes Atoms of a given element all have the same number of protons and electrons, but can have different numbers of neutrons. Versions of the same element with differing numbers of neutrons are call isotopes. The symbol for an isotope is AX Where: A is the mass number (number of protons plus neutrons) Z is the atomic number (number of protons) X is the symbol for the element 2. Show the isotope symbol for the isotope of Fe with...
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.
3. TRUE/FALSE: Most naturally occurring fatty acids have an odd number of carbon atoms. The pathway...
3. TRUE/FALSE: Most naturally occurring fatty acids have an odd number of carbon atoms. The pathway for catabolism of fatty acids is referred to as the B-oxidation pathway, because oxidation occurs at the B-carbon (C-3). The fatty acids can be oxidized by B-oxidation and converted into acetyl-CoA. 4. Use examples to explain oxidation of fatty acids as a major energy source.
Which statements are inconsistent with Rutherford's nuclear theory that was originally stated? a) Helium atoms have two protons in the nucleus and two electrons outside the nucleus. b) Most of the volume of hydrogen atoms is due to the nucleus. c) Aluminum atoms have 13 protons in the nucleus and 22 electrons outside the nucleus. d) The majority of the mass of nitrogen atoms is due to their 7 electrons. Protons, Neutrons, and Electrons 9) Which statement about protons is...
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...
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...
20) Which statement is NOT true about ionic bonds? A) An ionic bond occurs between positive ions and negative ions. B) Electrons are completely lost or gained in ion formation An ion has the same number of electrons as a nonionic atom of the same element. D) A salt such as NaCl is formed by an ionic reaction. 21) Which of the following would be a proposed mechanism by which stomach antacids work? A) Antacids are bases and by definition...
Isotope 2. Which of the following statements about isotopes is/are correct? (a) "Br and 8'Br have the same number of neutrons. (b) 'N and "SN have the same number of protons. (c) "O has the same number of neutrons and protons. (d) Answers (a) and (b) (e) Answers (a), (b) and (c) 3. How many nitrogen atoms are present in 0.250 mol of hydrazine (N2H4)? (a) 1.51 x 1022 nitrogen atoms (b) 3.01 x 1022 nitrogen atoms (c) 7.53 x...
all
6. Which combination of atoms is most likely to form an ionic compound if they are allowed to react with each other? A) metal and metal B) metal and nonmetal C) nonmetal and nonmetal D) metalloid and metalloid E) All combinations are likely to form an ionic compound. 7. A covalent bond involves which of the following? A) sharing of electrons between two atoms B) transfer of electrons between two atoms C) donation of protons from one atom to...
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)...
II. Isotopes Atoms of a given element all have the same number of protons and electrons, but can have different numbers of neutrons. Versions of the same element with differing numbers of neutrons are call isotopes. The symbol for an isotope is AX Where: A is the mass number (number of protons plus neutrons) Z is the atomic number (number of protons) X is the symbol for the element 2. Show the isotope symbol for the isotope of Fe with...
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.
3. TRUE/FALSE: Most naturally occurring fatty acids have an odd number of carbon atoms. The pathway for catabolism of fatty acids is referred to as the B-oxidation pathway, because oxidation occurs at the B-carbon (C-3). The fatty acids can be oxidized by B-oxidation and converted into acetyl-CoA. 4. Use examples to explain oxidation of fatty acids as a major energy source.
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