Question

1. which of the following statements about the nature of electrical charge is false? a) positive and negative electrical charges attract each other. b) electrical charge is a fundamental property of protons and electrons c) positive - positive or negative - negative charges repel each other. d) positive and negative charges cancel each other so that a proton and electron, when paired, are charge neutral. e) all of the above statements are true. 14) what is the correct chemical symbol for mercury? a) hy b) hm c) me d) my e) none of the above 15) metals are located where on the periodic table? a) middle b) left side c) zig - zag diagonal line d) right side e) none of the above 16) group 7a elements are also called: a) alkali metals b) halogens c) alkaline earth metals d) noble gases e) none of the above 17) group 2a elements are also called: a) alkaline earth metals b) halogens c) noble gases d) alkali metals e) none of the above 18) xe is a member of which family? a) noble gases b) halogens c) alkali metals d) alkaline earth metals e) none of the above 19) when an atom loses an electron, the resulting particle is called a) an isotope b) an anion c) a cation d) a proton e) none of the above

Explanation:

1. Positive - negative charges attract, like - like charges repel, and a proton - electron pair is charge - neutral. All statements are true.
2. The chemical symbol for mercury is Hg, so none of the given options are correct.
3. Metals are located on the left - hand side of the periodic table.
4. Group 7A elements are known as halogens.
5. Group 2A elements are called alkaline earth metals.
6. Xe (xenon) is a noble gas.
7. When an atom loses an electron, it forms a positively - charged ion called a cation.

Answer:

1. E. All of the above statements are true.
2. E. none of the above
3. B. left side
4. B. halogens
5. A. alkaline earth metals
6. A. noble gases
7. C. a cation