Question: I need help on these questions What is the atomic weight for the element that is in group 3A and period 2 ? What is

I need help on these questions

What is the atomic weight for the element that is in group 3A and period 2 ? What is the atomic weight for the element that is in group 8A and period 4 ? What is the atomic weight for the element that is in group 4B and period 4 ? What is the atomic weight for the element that is in group 2A and period 2

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