I have two questions:

1. Which group in the periodic table reacts with H2 to form compounds with the general formula MH2?
A. Group 1A
B. Group 2A
C. Group 3A
D. Group 4A
E. Group 5A

2.Which reacts with F2 to form compounds with the general formula MF2?
A. Group 1A
B. Group 2A
C. Group 3A
D. Group 4A
E. Group 5A

I thought Bob Pursley answered this question about half way down the page. Here it is.
http://www.jiskha.com/display.cgi?id=1177089995

Thanks...

Would group 2A satisfy both of them?

yes

Correct, Group 2A elements react with H2 to form compounds with the general formula MH2 and react with F2 to form compounds with the general formula MF2.

Yes, you are correct. Group 2A in the periodic table reacts with hydrogen (H2) to form compounds with the general formula MH2, and it also reacts with fluorine (F2) to form compounds with the general formula MF2. So, Group 2A satisfies both of these conditions.

To answer these questions about the periodic table, we can refer to the given options and look for the correct group that reacts with H2 (question 1) and F2 (question 2) to form compounds with the general formulas MH2 and MF2, respectively.

For question 1, the correct option is the group that reacts with H2 to form compounds with the general formula MH2. You can refer to the periodic table and locate the elements in each group.

In the given options, Group 1A, also known as the alkali metals, is unlikely to form compounds with the general formula MH2. Group 5A elements usually form compounds in the oxidation state of -3, not +2 as required for MH2.

Groups 3A and 4A could potentially form compounds MH2, but the most common compound formed by Group 2A elements is MH2. Therefore, the correct answer for question 1 is Group 2A.

For question 2, the correct option is the group that reacts with F2 to form compounds with the general formula MF2. Similar to question 1, you can refer to the periodic table and locate the elements in each group.

In the given options, Group 1A elements are unlikely to form compounds with F2 in the ratio of MF2. Group 2A elements are known to form compounds MF2, so they satisfy both questions.

Therefore, the correct answer for question 2 is also Group 2A.

After reviewing and analyzing the options, it appears that Group 2A satisfies both questions.