Basic reading Periodic Table

Front

What are the positive particles of an atom?

Back

Protons are the positive particles of an atom.

Front

What is the central region of an atom where its neutrons and protons are located?

Back

The nucleus is the central region of an atom.

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 do you find the number of neutrons in an atom?

Back

To find the number of neutrons, round the atomic mass and subtract the atomic number from it.

Front

Which atomic model states that electrons orbit the atom like planets orbit the sun?

Back

The Bohr model states that electrons orbit the atom like planets orbit the sun.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

What is the atomic mass of an element?

Back

The atomic mass is the weighted average mass of an element's isotopes.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom.

Front

What is the electron cloud?

Back

The electron cloud is the region around the nucleus where electrons are likely to be found.

Front

What is the difference between atomic mass and atomic number?

Back

Atomic mass is the total number of protons and neutrons, while atomic number is the number of protons.