Atoms

Question 1

What is the radius of an atom?

Answer 1

about 0.1 nanometres

Question 2

what is in the middle of the atom?

Answer 2

the nucleus

Question 3

what does the nuclueus contain?

Answer 3

protons and nuetrons

Question 4

what charge is the nucleus?

Answer 4

it has an positive charge

Question 5

electrons move around the atom in what?

Answer 5

move around in shells

Question 6

what is the charge of the proton?

Answer 6

positive

Question 7

what is the charge of the nuetron?

Answer 7

the nuetron is nuetrul (0) charge

Question 8

what is the charge of the electron?

Answer 8

negative charge

Question 9

what is the relative mass of proton and neutron?

Answer 9

mass of 1

Question 10

what is the relative mass of the electron?

Answer 10

1/1840

Question 11

why are atoms charge in whole nuetral?

Answer 11

because they have the same amount of protons and electrons with the opposite charge so they cancel each other out leaving with an charge of 0 and the nuetron is also 0 it the overal charge of an atom is 0.

Question 12

What does the mass number tell?

Answer 12

the total number of protons and neutrons in the atom.

Question 13

what does the atomic number tell?

Answer 13

the atomic number tells you how many protons there are and electrons because they is always the same amount of protons and electrons in an atom.