Whats the answer giving brainliest please help asap lol

Which of the following pairs of elements belong to the same groupa. h and he b. li and bec. c and pb d. ga and ge

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?