Group 2A Flashcards
(3 cards)
0
Q
Mg
A
Name: Magnesium Group: 2A Atomic #: 12 Atomic mass: 24.305 Energy levels: 3 Protons: 12 Neutrons: 12
1
Q
Be
A
Name: Beryllium Group: 2A Atomic #: 4 Atomic mass: 9.0122 Energy levels: 2 Protons: 4 Neutrons: 5
2
Q
Ca
A
Name: Calcium Group: 2A Atomic #: 20 Atomic mass: 40.078 Energy levels: 4 Protons: 20 Neutrons: 20
