The table to the right lists three characteristics of an atom of an element. An atom of which element is described by the data in the table?

Rubidium

Explanation:

Rubidium is an alkali metal that has 37  protons 48 neutrons and 1 valence electron

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).