Atomic Structure

Front

What is the charge of the nucleus of all atoms or ions?

Back

Positive.

Front

How many protons does Argon have according to the periodic table?

Back

18 protons.

Front

What is the mass of an electron compared to protons and neutrons?

Back

The mass of an electron is so small that it is not counted.

Front

What do all atoms of a particular element have in common?

Back

They have the same number of protons.

Front

What does the term 'neutral' mean in terms of atomic charge?

Back

Having no charge at all.

Front

What are protons and where are they located in an atom?

Back

Protons are positively charged particles located in the nucleus of an atom.

Front

What is the role of neutrons in the nucleus of an atom?

Back

Neutrons help to stabilize the nucleus and contribute to the atomic mass.

Front

What is the difference between an atom and an ion?

Back

An atom is neutral, while an ion has a net charge due to the loss or gain of electrons.

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

How does the number of electrons relate to the charge of an atom?

Back

If the number of electrons equals the number of protons, the atom is neutral; if not, it is an ion.