Chemistry 3.X Atomic structure, Ions, Isotopes JA

Front

What are the particles located outside the nucleus of an atom?

Back

Electrons.

Front

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

Back

Nucleus.

Front

How do carbon-12 and carbon-14 differ?

Back

They have a different number of neutrons.

Front

Which atom has a nucleus represented by the symbol Na?

Back

Sodium (Na).

Front

In a neutral atom, the number of protons is equal to the number of what other particle?

Back

Electrons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.