Atoms

Question 1

What are Isotopes

Answer 1

Are atoms that have the same number of protons, but different numbers of neutrons in their nuclei.

Question 2

Proton Mass

Answer 2

1

Question 3

Neutron Mass

Answer 3

1

Question 4

Electron Mass

Answer 4

1/1820 or 1/2000

Question 5

Proton Charge

Answer 5

Positive or 1+

Question 6

Neutron Charge

Answer 6

Neutral or no charge

Question 7

Electron Charge

Answer 7

Negative or 1-

Question 8

Proton Location

Answer 8

Nucleus

Question 9

Neutron Location

Answer 9

Nucleus

Question 10

Electron Location

Answer 10

In shells around the nucleus

Question 11

Where is the atomic number located on the periodic table?

Answer 11

It is the bottom/smallest number on an element.

Question 12

Where is the Mass number located on the periodic table

Answer 12

The top/largest number on an element.

Question 13

What is the Mass number made up of?

Answer 13

N.O of Protons + N.O of Neutrons

Question 14

Why do atoms have an equal number of electrons and protons?

Answer 14

Because they need to be neutral.

Question 15

Fact

Answer 15

Atomic number = Proton number

Question 16

Fact

Answer 16

Proton number gives you your identity of an atom.

Question 17

Do isotopes of the same element always have the same or different atomic masses?

Answer 17

Different

Question 18

Isotopes important facts:

Answer 18

Same atomic number
Same N.O pf protons
Diff mass numbers
Diff N.O of neutrons

Question 19

What can make an atom unstable?

Answer 19

Having an extra amount of neutrons

Question 20

Isotopes properties

Answer 20

Isotopes of the same element can have different physical properties, E.G: Density.

Isotopes of the same element always have the same chemical properties

Question 21

How to calculate RAM (Relative Atomic Mass)

Answer 21

RAM = (% of isotope A x mass of isotope A) + (% of isotope B x mass of isotope B). All divided by 100.

Question 22

Periodic table periods and groups

Answer 22

The period is the rows. (Horizontal)
The group is the columns. (Vertical)

Question 23

RAM Defenition

Answer 23

Weighted mean mass of an atom of an element compared to 1/12 of a carbon atom.