Atoms

Question 1

Describe the nucleus…

Answer 1

This is made up of protons and neutrons and almost the whole atom mass is concentrated in the nucleus.
The nucleus is positively charged due to the protons. The nucleus is found in the middle of the atom and is tiny size-wise.

Question 2

Describe the electrons..

Answer 2

Negatively charged.
Move around the nucleus.
The size of their orbit determines the size of the atom.
Arranged in shells.
Tiny, but they cover lots of space.
No mass.
They explain the whole of chemistry. Their configuration determines atom features.

Question 3

In a neutral atom, the number of protons is equal to the number of…
This is because…

Answer 3

Electrons, the charges are equal.

Question 4

If electrons are added or removed, the atom becomes an…

Answer 4

Ion.

Question 5

Atoms of the same element will always have the same … Number. So atoms with 2 protons will always be… Atoms.

Answer 5

Proton, hydrogen.

Question 6

Differences in atomic structure, such as proton numbers, create…

Answer 6

Differences in characteristics.

Question 7

An aqueous substance is a substance that was…

Answer 7

Dissolved in water.

Question 8

Protons are… Charged with a … Mass.
Neutrons are… Charged with a … Mass.
Electrons are… Charged with a … Mass.

Answer 8

Positively, heavy, (1).
Neutrally, heavy, (1).
Negatively, almost non existent(0.0005).