For 100pts! The electron configuration of an element is shown below.

1s22s22p5

Name the group this element belongs to in the periodic table and explain your answer.

Based on the electron configuration, explain how many electrons it is likely to receive from the atom of another element during the formation of a bond.

Group 17 Halogens, the electron configuration ends with p⁵, which represents group 17. Based on this configuration, the atom will receive one electron during the formation of a bond to get the full octet and reach the electron configuration of group 18, the noble gasses.

Explanation:

The attached image show the electron configuration breakdown for this problem. There is a good video on YT about electron configuration by the organic chemistry tutor if you have issues on understanding how to count the numbers.

the answer is d   for sure : )

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer