SPS1a Science Starter 12-3-24 (5th period)

Front

What is an alpha particle?

Back

An alpha particle consists of 2 protons and 2 neutrons.

Front

How does a neutral atom become a 2+ ion?

Back

A neutral atom becomes a 2+ ion by losing two electrons.

Front

What are isotopes?

Back

Isotopes are atoms that have the same atomic number but different mass numbers.

Front

How are protons and neutrons similar?

Back

Both are in the nucleus of the atom and they both have a relative mass of 1.

Front

What are two neutral atoms with the same atomic number but different mass numbers called?

Back

They are called isotopes.

Front

What is the charge of a proton?

Back

A proton has a charge of +1.

Front

What is the charge of a neutron?

Back

A neutron has no charge (neutral).

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What happens to an atom when it loses electrons?

Back

When an atom loses electrons, it becomes a positively charged ion (cation).

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus.