Atoms

Atoms radius size

Atoms radius size

0.1 nanometres

Atoms radius size in standard form

1 x 10(-10)m

Nucleus description

In the middle of the atom and contains protons and neutrons

Nucleus radius size

0.01 picometres

Nucleus radius size standard form

1 x 10(-14)

Why does mass number tell you

How many protons and neutrons there are

What does atomic number tell you

How many protons there are

What does the nuclear symbol tell you

Its atomic number and mass number

What is an ion

An atom or group of atoms that has lost or gained electrons

Why are atoms neutral

Because they have the same amount of protons and electrons

Atoms overall charge

Neutral(0)

Charge of electrons

-1

Charge of neutrons

0

Charge of protons

+1

Relative mass of electrons

Very small, often 0

Relative mass of neutrons

1

Relative mass of protons

1

What does electron volume determine

The volume of their orbits determines the size of the atom

Electron charge

Negatively charged and tiny, but cover a lot of space

Electrons description

Move around the nucleus in electron shells

Where is the mass in the nucleus

Almost all of it is concentrated in the nucleus

Nucleus charge

It has a positive charge