Question

question 7 1 pts the electronic configuration for the hydrogen atom is given as and specifies the shell, the subshell and the number of electrons residing in that subshell. 2s^1 1s^1 1h^1 1s^1 question 8 1 pts the arrangement of the periodic table is based on the electron configurations of the elements. true false

Explanation:

For Question 7, hydrogen has 1 electron which occupies the 1s sub - shell, so its electron configuration is $1s^1$. For Question 8, the periodic table's arrangement is indeed based on the electron configurations of elements, which helps in understanding trends in properties.

Answer:

Question 7: D. $1s^1$
Question 8: A. True