Periodic Table

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the atomic number of neon?

Back

10

Front

What is the atomic number of iron?

Back

26

Front

What is the atomic number of calcium?

Back

20

Front

What does the period number in the periodic table indicate?

Back

The period number indicates the highest energy level of electrons in an atom.

Front

What does the group number in the periodic table indicate?

Back

The group number indicates the number of valence electrons in the outer shell of an atom.

Front

What element is in period 4, group 2?

Back

Calcium.

Front

What is the symbol for tin?

Back

Sn.

Front

What is the significance of the periodic table's arrangement?

Back

Elements are arranged by increasing atomic number, which reflects their properties and relationships.

Front

What is a metal?

Back

A metal is a type of element that is typically shiny, malleable, ductile, and a good conductor of heat and electricity.