Protons, neutrons, electrons

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom. They determine the atomic number and identity of an element.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom. They contribute to the mass of the atom but do not affect its charge.

Front

What are electrons?

Back

Electrons are negatively charged particles that orbit the nucleus of an atom. They are involved in chemical bonding and reactions.

Front

How do you find the number of neutrons in an atom?

Back

Subtract the atomic number from the mass number.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the mass number?

Back

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

Front

What happens to an atom if it gains an electron?

Back

It becomes a negative ion.

Front

What happens to an atom if it loses an electron?

Back

It becomes a positive ion.

Front

How many protons does silver have?

Back

Silver has 47 protons.

Front

How many electrons does helium have?

Back

Helium has 2 electrons.