Atoms And Electrons

Question 0

Where is the nucleus?

Answer 0

It’s in the middle of the atom

Question 1

How big are atoms?

Answer 1

They’re tiny

Question 2

What does the nucleus contain?

Answer 2

Protons and neutrons

Question 3

Are protons positively or negatively charged?

Answer 3

Positively

Question 4

Do neutrons have a negative, positive or no charge?

Answer 4

No charge

Question 5

Overall, is the nucleus positively or negatively charged?

Answer 5

Positively because of the protons

Question 6

How big is the nucleus of an atom?

Answer 6

It’s tiny compare to the rest of the atom

Question 7

What charge does an ATOM have overall?

Answer 7

An atom has no charge, they’re neutral

Question 8

The number of protons in at atom is also the same number as what?

Answer 8

Electrons

Question 9

If some electrons are added or removed, that atom becomes charged, what is the atom then called?

Answer 9

An ion

Question 10

How many types of atom does an element consist of?

Answer 10

One

Question 11

How many different elements are there?

Answer 11

100

Question 12

What are the vertical columns in the periodic table called? (Going down)

Answer 12

Groups

Question 13

All of the elements in a group have the same what?

Answer 13

Number of electrons on there outer shell

Question 14

What are the elements is group 0 called? (Group 8)

Answer 14

The noble gases

Question 15

What does it mean if an element is a noble gas?

Answer 15

It means they’re stable and I reactive (they’re outer shell is full)

Question 16

What is the top number on an element on the periodic table called?

Answer 16

The mass number

Question 17

What is the mass number of an electron?

Answer 17

The total number of protons and neutrons

Question 18

What is the bottom number on an element on the periodic table called?

Answer 18

The atomic number

Question 19

What is an atomic number?

Answer 19

The number of protons ( which is also the number of electrons)

Question 20

How do you work out the number of neutrons in an atom?

Answer 20

Subtract the atomic number from the mass number

Question 21

What do electrons occupy?

Answer 21

Shells

Question 22

When chemical elements react, atoms form chemical bonds with other atoms to form what?

Answer 22

Compounds

Question 23

What is a compound?

Answer 23

Atoms joint together

Question 24

What is ionic bonding?

Answer 24

Ionic bonding is when the metal atoms lose electrons to form positive ions and the non metal atoms gain electrons to form negative ions.

Question 25

What is the charge of a proton?

Answer 25

+1

Question 26

What is the charge of a neutron?

Answer 26

0

Question 27

What is the charge of an electron?

Answer 27

-1

Question 28

What boning consists of a metal and a non metal?

Answer 28

Ionic bonding

Question 29

What is the bonding when a non metal bonds with a non metal?

Answer 29

Covalent bonding

Question 30

What is covalent bonding?

Answer 30

A covalent bond is when was atom shares an electron with another atom. Each atom has to make enough covalent bonds to fill up its outer shell.

Question 31

Atoms are made in chemical reaction, true or false?

Answer 31

False, atoms aren’t made or lost in a chemical reaction. They’re just arranged in different ways

Question 32

The atoms at the start of an equation are called what?

Answer 32

Reactants

Question 33

The atoms at the end of an equation are called what?

Answer 33

Products

Question 34

In an equation, there must be the same number of atoms on each side of the arrow, true or false?

Answer 34

True, the reactants and the products both have to be balanced