Atoms And Elements

Question 1

Atoms have a ……. Nucleus surrounded by……..

Answer 1

Nucleus

Electrons

Question 2

Name 6 points about the nucleus of an atoms

Answer 2

1- in the middle of the atom
2- contains protons and neutrons
3- protons have a positive charge
4-neutrons have no charge
5- nucleus has a positive charge overall because of the protons
6- size wise it’s tiny compared to the rest of the atom

Question 3

Name 5 points about the electrons

Answer 3

1-move around the nucleus
2- they're negatively charged
3- tiny, but cover a lot of the space
4- occupy shells around the nucleus 
5- these shells explain the whole of chemistry

Question 4

The number of protons ………. The number of electrons

Answer 4

Equals

Question 5

What is the charge of atoms overall

Answer 5

They have no charge. They are neutral

Question 6

If some electrons get added or removed To and from an atom, the atom now becomes….

Answer 6

An ion

Question 7

What decides what type of an atom an atom is?

Answer 7

The number of protons in the nucleus.

For example an atom with one proton is hydrogen and two protons is helium.

Question 8

What is a substance called with one type of atom

Answer 8

An element

Question 9

How many different elements are there?

Answer 9

About 100

Question 10

All the atoms of a particular element have….

Answer 10

The same number of protons

Question 11

Different elements have atoms with

Answer 11

Different number of protons