Question

Help Questions I need help with please!

Answer 1

1) 2 + 8 + 8 + 1 = 19 electrons
what element group 1 has 19 electrons ?
Potassium

Answer 2

2) phosphorous
how many electrons?
inner most shell only 2

Answer 3

3)what group is stable?
(no extra electrons to form bonds) the shell is complete has 8 electrons

Answer 4

aha so what is 2 and 3 ?

Answer 5

@triciaal

Answer 6

barium has an atomic number of 56 so that would be 6s2 after XE

Answer 7

noble gases are stable

Answer 8

phosphorous 15
1s2 2s2 2p6 3s2 3p3

Answer 9

can you please help me with 1 more?

Answer 10

i'll try

Answer 11

bromine is 35 just before Krypton

Answer 12

so its b?

Answer 13

don't remember about shell d
definitely choice b or c
bromine in period 4

Answer 14

I would put c because only one needed for 2p6 which is stable

Answer 15

Thank You for your time.

Answer 16

you are welcome!