Question

halp me im poor please ask this

Answer 1

1. chlorine 17.

2.Barium , Ba , 56

3. sorry bro I don't know.

4.??????

5. as noun the difference between subshel and sub level ...... is the sub shell is ( chemistry physics) atomic orbitals for which the values of the n and I quantam number are the same , such as the three 2p or five 3d atomic orbitals while sub level is an intermediate level between other in a mine .

6.the group number in the Periodic table represents number of the valence electrons of the element in a certain group .For example ,all the element in group 1_ have 1 electrons in their outer most shell.

7. the number of electron in a neutral atom olis equal to the number protons .

8.????

9.?????

10.?????

11.????

12.????

sorry bro I don't know