Topic 1

Question 1

Charge of a Proton

Answer 1

Positive

Question 2

Charge of a Neutron

Answer 2

Neutral

Question 3

Charge of an Electron

Answer 3

negative

Question 4

Relative Masses:

Proton
Neutron
Electron

Answer 4

1
1
1/1836

Question 5

What is the ATOMIC NUMBER

Answer 5

Number of protons

Question 6

What is the MASS NUMBER

Answer 6

Number of protons and neutrons added together

Question 7

How many protons, neutrons and electrons in Boron?

B5
11

Answer 7

Protons = 5

Neutrons = 5

Electrons = 11 - 5 = 6

Question 8

How many protons, neutrons and electrons in iron?

Fe 26
56

Answer 8

Protons = 26

Neutrons = 26

Electrons = 30

Question 9

isotope

Answer 9

Versions of an element that have different numbers of neutrons, but equal numbers of protons and electrons

Question 10

Group number on periodic table=…

Answer 10

Number of electrons on outer shell

Question 11

Small to Big size sort:

Proton, nucleus, atom, electron

Answer 11

Small: Electron
Proton
Nucleus
Big: Atom

Question 12

In 1805, what did Dalton believe?

Answer 12

He didn’t know about protons, neutrons and electrons

He said that atoms were solid spheres and couldn’t be broken down anymore

Question 13

Isotope Equation for Avg. Relative Mass

Answer 13

(isotope x abundance) + (isotope x abundance)…
—————————————————————
100

Question 14

Isotope Equation:

Cl 35 75% and Cl 37 25%

Answer 14

(35 x 75%) + (37 x 25%)
——————————-
100

Answer = always between 2 beginning masses

Question 15

What are ions?

Answer 15

Atoms that have gained or lost electron - they have a charge

Question 16

Atoms that have ____ electrons are positively charged = cations

Answer 16

Lost

Question 17

Atoms that have gained electrons are ___ charged = anions

Answer 17

Negatively