Chemistry Notes 1 and 2

Front

What happens to the proton number as you move down a group on the periodic table?

Back

The proton number increases for each element.

Front

How do protons and neutrons compare in terms of mass and charge?

Back

Both have similar masses but different charges.

Front

Where are electrons located within an atom and what is their mass?

Back

Electrons have very little mass and are located within the cloud that surrounds the nucleus of an atom.

Front

Which element is the least massive in period 3?

Back

Sodium.

Front

What is the most accurate way to identify a specific element on the periodic table?

Back

Knowing the atomic number.

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 the nucleus of an atom composed of?

Back

Protons and neutrons.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.