Question

Which two elements have the same number of energy levels with electrons in them?
A. krypton and neon****
B. neon and sodium
C. lithium and francium
D. boron and oxygen

Answer 1

all of the outermost energy levels of hydrogen, lithium, and sodium atoms are part of the same sublevel (s-sublevel) and contain the same number of electrons
boron and oxygen

Answer 2

I don't agree with your choice.
Ne is 2 and 8 which is 2 energy levels.
Kr is 2 and 8 and 18 and 8 which is 4 energy levels.
In fact, you KNOW it can't be two elements in different periods because each period has at least another energy level. So look for two elements in the same period.

Answer 3

Don’t be rude tho

Answer 4

irk

Answer 5

1.Calcium
2.Chlorine
3.An electron in the outer energy level of an atom
4.A row of elements
5.Boron and Oxygen

I got 3/5 bc i couldnt find correct answers so here

Answer 6

is right
5/5

Answer 7

can confirm 5/5

Answer 8

where the answer i dont understand how people get an answer from this or its just me

Answer 9

oh never mind i found it lmao

Answer 10

wait i am on the wrong question nvm i dont see answer on this either

Answer 11

bro just give the answer