Question

What idea did James Chadwick add to the atomic model in the 1930s?

Positive charge is clumped together in the nucleus.

Atoms are indivisible bits of matter.

Neutrons are present in the nucleus.

Atoms contain electrically charged particles.

Answer 1

@rajathsbhat

Answer 2

sorry

Answer 3

Its ok, if you cant

Answer 4

:) you helped alot

Answer 5

brb

Answer 6

ok

Answer 7

take your time

Answer 8

ok before chadwick, ppl thought that the nucleus was comprised of only protons. This couldn't be because protons repel each other and so the nucleus couldn't have existed. Chadwick came along with this idea of neutral particles that existed alongside protons. This now accounted for the mass of the atom as a whole, and the stability of the nucleus.
The existence of neutrons was later confirmed experimentally and chadwick takes home the Nobel prize.
~The End~

Answer 9

sorry C

Answer 10

Yes^

Answer 11

so C is correct, right

Answer 12

yup

Answer 13

thank you so so much @rajathsbhat ! your are really awesome! thanks alot for helping!

Answer 14

you're awesome too :D keep up the good work

Answer 15

No i m not at all :) but you are, um stupid

Answer 16

No way. You're learning chemistry, advancing human knowledge of the universe. That is why you're awesome :)