Question

Why do the elements of period 4 start a new cycle of properties after the element argon? Select all that apply.

1. The electrons in the outermost energy level are primarily responsible for the properties of an element.
2. The n = 3 energy level of argon is complete.
3. Additional electrons after argon begin to fill a sublevel of the n = 4 energy level.
4. All the energy levels of period 4 elements are less than period 3 because the amount of energy between energy levels decrease with distance from the nucleus.

Answer 1

Isn't there a science or chemistry section O_O.

Answer 2

Yeah but I cant seem to get any help from them.

Answer 3

Hmmm. It isn't choice 2. It needs to apply to elements in that period....

Answer 4

I am not even sure where the heck to find this,

Answer 5

Nor is it choice 3.

Answer 6

I'm thinking it's something to do with the valence electrons and their energy

Answer 7

I know it is not 1, I got that one wrong.

Answer 8

leme look at the periodic table. can't remember

Answer 9

Isn't argon a noble gas?

Answer 10

or am I mistaken :3

Answer 11

Yeah, I think...

Answer 12

hmm tough. Good question. I would try google :] . Sorry I couldn't really help. I'm rusty when it comes to theory

Answer 13

Well can you help me with this one....?

Answer 14

Why do the elements of period 4 start a new cycle of properties after the element argon? Select all that apply.


1. The electrons in the outermost energy level are primarily responsible for the properties of an element.
2. The n = 3 energy level of argon is complete.
3. Additional electrons after argon begin to fill a sublevel of the n = 4 energy level.
4. All the energy levels of period 4 elements are less than period 3 because the amount of energy between energy levels decrease with distance from the nucleus.

Answer 15

i'm stuck on this question right now on my online schooling and idk where else to find help for it i already read the lesson like 4 times and it isn't helping at all.