Atomic Structure

Question 0

Neutrons are neutral, but protons and electrons are electrically charged. What are the charges of the protons and electrons?

Answer 0

Electron: -1
Proton: +1

Question 1

What do atoms consist of?

Answer 1

Atoms consist of electrons surrounding a nucleus that contains protons and neutrons.

Question 2

The number of protons in an atom is called its ?

Answer 2

Atomic number.

Question 3

Electrons are arranged in energy levels or shells, and different energy levels can hold different numbers of electrons. The electronic structure of an atom is?

Answer 3

A description of how the electrons are arranged, which can be shown in a diagram or by numbers. There is a link between the position of an element in the periodic table and its electronic structure.

Question 4

Although the word ‘atom’ comes from the Greek for indivisible, we now know that atoms are not the smallest particles of matter. Atoms are made from ?

Answer 4

Smaller subatomic particles.

Question 5

The total number of electrons in an atom is always the same as the number of protons in the nucleus. This means?

Answer 5

Atoms have no overall electrical charge.

Question 6

Electrons are arranged in different shells around the nucleus. How are they arranged?

Answer 6

2,8,8…