Periodic Table Test Review

Front

What is the difference between carbon-12 and carbon-14?

Back

Carbon-14 has two more neutrons than carbon-12.

Front

In which section of the periodic table is silicon found?

Back

Silicon is found in section 3.

Front

Which three elements have the most similar chemical properties?

Back

K, Rb, Cs.

Front

What is the composition of the atomic nucleus?

Back

The nucleus is made of protons and neutrons and has a positive charge.

Front

What type of elements are placed in section 2 of the periodic table?

Back

Metals.

Front

What are isotopes?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of a neutron?

Back

A neutron has no charge (it is neutral).

Front

What are the main categories of elements in the periodic table?

Back

The main categories are metals, nonmetals, and metalloids.

Front

What is the significance of the atomic number?

Back

The atomic number represents the number of protons in an atom and determines the element's identity.