EOL 2.3

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

How many protons are in an atom of Zinc (Zn)?

Back

30

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.

Front

What is the atomic number of Barium (Ba)?

Back

56

Front

How many electrons are in an atom of Nitrogen (N)?

Back

7

Front

What is the significance of the atomic number in the periodic table?

Back

The atomic number determines the position of an element in the periodic table and its chemical properties.

Front

How many protons are in an atom of Beryllium (Be)?

Back

4

Front

What is the definition of an atom?

Back

An atom is the smallest unit of an element that retains the properties of that element.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of an electron?

Back

An electron has a negative charge.