Help again please thank you

1) False

2) True

3) False

4) True

5) True

6) False

7) True

8) True

The electron configuration of an element describes how electrons are distributed in its atomic orbitals. Electron configurations of atoms follow a standard notation in which all electron-containing atomic subshells (with the number of electrons they hold written in superscript) are placed in a sequence. For example, the electron configuration of sodium is 1s22s22p63s1.

Step-by-step explanation:

step-by-step explanation:

i am not sure sorry : c

my answer is$ 12

step-by-step explanation:

because 15 -2=12