Unit 1 - Part 2 - Atomic Structure

Question 1

Which sub-atomic particle has almost no mass?

Answer 1

Electron

Question 2

Which sub-atomic particle has a positive charge?

Answer 2

Proton

Question 3

Which sub-atomic particles have a mass of one?

Answer 3

Proton and neutron

Question 4

What is an electrons charge?

Answer 4

Negative

Question 5

Which sub-atomic particle has a neutral charge?

Answer 5

Neutron

Question 6

Where would you find a proton?

Answer 6

In the neucleus

Question 7

Where would you find an electron?

Answer 7

In the energy levels

Question 8

Where would you find a neutron?

Answer 8

In the neucleus

Question 9

What is the atomic number?

Answer 9

The number of protons in an atom

Question 10

How do you find out the mass number of an atom?

Answer 10

Number of protons add the number of neutrons

Question 11

How do you find out the number of neutrons?

Answer 11

Mass number minus the number of protons

Question 12

How many electrons can the first energy level hold?

Answer 12

2 electrons

Question 13

How many electrons can all but the first energy level hold?

Answer 13

8 electrons

Question 14

What is the electron arrangement for oxygen?

Answer 14

2,6

Question 15

What is the electron arrangement for lithium?

Answer 15

2,1

Question 16

What is the electron arrangement for krypton?

Answer 16

2,8,8,8

Question 17

What is the definition of an isotope?

Answer 17

An isotope is a defined as two or more atoms with the same atomic number but different mass number

Question 18

What is neuclide notation?

Answer 18

When you have the mass number on top of the attic number and the element symbol to the right

Question 19

What is relative atomic mass?

Answer 19

The relative atomic mass is the average mass of all isotopes of an element

Question 20

Why do atoms form covalent bonds?

Answer 20

To get a full outer shell

Question 21

What effects whether an atom will gain or lose electrons when bonding?

Answer 21

The number of electrons

Question 22

In general, do metals gain or lose electrons?

Answer 22

Metals usually lose electrons and non-metals gain electrons

Question 23

Does hydrogen gain or lose electrons?

Answer 23

Hydrogen loses electrons

Question 24

What is a molecule?

Answer 24

When 2 or more non-metal atoms join together by covalent bonds

Question 25

Do covalent substances have low or high melting and boiling points?

Answer 25

They have low melting and boiling points

Question 26

Do covalent substances dissolve in non-aqueus solutions?

Answer 26

Yes they do

Question 27

Do covalent substances dissolve in non-aqueus solutions?

Answer 27

Yes they do

Question 28

Do covalent substances conduct electricity?

Answer 28

Covalent substances don’t conduct in any state

Question 29

What is an intramolecular bond?

Answer 29

A covalent bond that is inside each molecule. They are very strong

Question 30

What is an intermolecular bond?

Answer 30

They are covalent bonds that are weak and are attractive forces. They break at low temperatures