chemistry

?
  • Created by: arxhie10
  • Created on: 07-01-19 09:54
Which scientist found evidence for the existence of neutrons?
James Chadwick
1 of 9
What is the radius of a typical atom?
1 × 10-10 m
2 of 9
What is the relative mass and charge of a neutron?
Mass = 1 and charge = 0
3 of 9
An atom has 13 protons and 14 neutrons. What is its mass number?
27
4 of 9
An atom has an atomic number of 9 and a mass number of 19. What are its numbers of protons, neutrons and electrons?
Protons = 9, neutrons = 10, electrons = 9
5 of 9
What are isotopes?
Isotopes are atoms of the same element with different numbers of neutrons.
6 of 9
Four atoms have the numbers of protons and neutrons given below. Which two atoms are isotopes of the same element? W: 8 protons and 8 neutrons X: 8 protons and 10 neutrons Y: 10 protons and 8 neutrons Z: 9 protons and 10 neutrons
W and X
7 of 9
What is the best definition of the relative atomic mass of an element?
The average mass of its atoms compared to one-twelfth of the mass of a carbon-12 atom
8 of 9
A sample of naturally occurring neon is 91% neon-20 and 9% neon-22. What is its relative atomic mass?
20.2.
9 of 9

Other cards in this set

Card 2

Front

What is the radius of a typical atom?

Back

1 × 10-10 m

Card 3

Front

What is the relative mass and charge of a neutron?

Back

Preview of the front of card 3

Card 4

Front

An atom has 13 protons and 14 neutrons. What is its mass number?

Back

Preview of the front of card 4

Card 5

Front

An atom has an atomic number of 9 and a mass number of 19. What are its numbers of protons, neutrons and electrons?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Applied Science resources:

See all Applied Science resources »See all atomic structure resources »