Question

repost bc i forgot to give more points)) What is this numbers Atomic number and Atomic mass? Using a periodic table, what kind of material is this? Thank you :))

Answer 1

Answer: Atomic number- 3 because there are 3 protons

atomic mass-7 because 3 protons + 4 neutrons (atomic mass is protons + neutrons)

According to the periodic table, this atom is of the element Lithium, which is an alkali metal.

hope it helps.

Answer 2

Lithium (Li) is an atom that consists of 3 protons and 4 neutrons.