Question

Help check

Answer 1

@Vocaloid

Answer 2

hm, you're on the right track but

the nucleus of a hydrogen atom is positively charged and an electron is negatively charged

so what sort of repulsion/attraction is going on?

Answer 3

well, if the nuclei are both positively charged the nuclei must repel each other (likes repel)

there must also be attraction between the nucleus and the electrons (opposites attract)

so what two statements look good to you?

Answer 4

there's one choice that mentions repulsion btwn nuclei (choice 2)
there's also a choice that mentions attraction between electrons and nuclei (choice 5)

Answer 5

A

Answer 6

hm, no, the first statement wouldn't be true, if the nuclei are infinitely apart then there will be no attraction (think about coloumb's law)

Answer 7

B

Answer 8

because they would repel

Answer 9

good, anything else?

Answer 10

e?

Answer 11

good, B+E

Answer 12

let's go through one box at a time

1. attractive force is predominant between the atoms

this happens when the attractive force is just enough to overcome the repulsive force, so that would draw the atoms closer to each other

which two statements might this be?

Answer 13

good, but those two should be in the attractive force box not the repulsive box

Answer 14

so, moving on to the repulsive box, the repulsive force is strong when the atoms are close to each other and the potential energy is positive

Answer 15

any ideas about the other statements? which remaining statement suggests that the atoms are very close (have a short internuclear distance)?

Answer 16

internuclear distance between...

Answer 17

good

Answer 18

so when the forces are balanced (third box) which two statements do you think are true?

Answer 19

form a stable bond

Answer 20

good, that also means the potential energy is minimal

Answer 21

then the last statement (the two hydrogen atoms are very far apart) gets the last box