When reacting with a chlorine atom, a sodium atom reacts by losing an electron to form the Na+ ion, which is a. uncharged
b. a cation
c. neutral
d. an anion

b cation

Explanation:

that plus means it is positively charged. ions that are positively charged are cations. negatively charged ions are called anions

answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation:

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.