ACS Gen Chem Ch. 1 Conceptual
verified question with 100% answers
1. A sodium ion differes from a sodium ion in that the sodium ion:
a. has fewer electrons
b. is an isotope of sodium
c. exists only in solution
d. has a negative charge in its nucleus
- ANSWER-a. has fewer electrons
2. An atom of strontonium-90 (90/38)Sr contains
a. 38 electrons, 38 protons, 52 neutrons
b. 38 electrons, 38 protons, 90 neutrons
c. 52 electrons, 52 protons, 38 neutrons
d. 52 electrons, 38 protons, 38 neutrons
- ANSWER-a. 38 electrons, 38 protons, 52 neutrons
3. How many neutrons are in (37/17) Cl-?
a. 17
b. 20
c. 21
d. 37
- ANSWER-b. 20
4. How many protons, neutrons, and electrons are present in (47/22)Ti 3+
a. 22p+, 25n°, 19 e-
b. 22p+, 25n°, 25e-
c. 25p+, 22n°, 19e-
verified question with 100% answers
1. A sodium ion differes from a sodium ion in that the sodium ion:
a. has fewer electrons
b. is an isotope of sodium
c. exists only in solution
d. has a negative charge in its nucleus
- ANSWER-a. has fewer electrons
2. An atom of strontonium-90 (90/38)Sr contains
a. 38 electrons, 38 protons, 52 neutrons
b. 38 electrons, 38 protons, 90 neutrons
c. 52 electrons, 52 protons, 38 neutrons
d. 52 electrons, 38 protons, 38 neutrons
- ANSWER-a. 38 electrons, 38 protons, 52 neutrons
3. How many neutrons are in (37/17) Cl-?
a. 17
b. 20
c. 21
d. 37
- ANSWER-b. 20
4. How many protons, neutrons, and electrons are present in (47/22)Ti 3+
a. 22p+, 25n°, 19 e-
b. 22p+, 25n°, 25e-
c. 25p+, 22n°, 19e-
