Element I Group 2

Element 11
Group 6

Both
Period 4

Refer to the Venn diagram above. Which of the following traits do Element I and Element Il have in common?

A.) The same atomic number
B.)The same atomic mass
C.)The same number of energy levels D.)The same number of valence electrons​

These traits describe either a chemical or a nuclear reaction. which statements describe a nuclear reaction? check all that apply. involves the loss, gain, or sharing of electrons may involve a change in total mass involve relatively low energy changes occur outside the nucleus involve very high-energy changes involve changes in nuclides when decay occurs