Calcium Atom Structure and Electrons

The video tutorial explains the atomic structure of calcium using the Bohr model. It covers the atomic number, protons, and electron distribution across energy levels. The tutorial also demonstrates how to use the periodic table to determine these energy levels and highlights the importance of valence electrons in chemical bonding. Additional resources are provided for further learning.

What is the atomic number of calcium?

• 24

• 18

• 20

• 22

How many protons are present in the nucleus of a calcium atom?

• 18

• 24

• 22

• 20

In a neutral calcium atom, how many electrons are there?

• 18

• 20

• 24

• 22

How many energy levels are there in a calcium atom?

• 2

• 3

• 4

• 5

How many electrons can the second energy level hold?

• 2

• 4

• 6

• 8

How many electrons are in the third energy level of calcium?

• 8

• 2

• 6

• 4

What are the electrons in the highest energy level called?

• Core electrons

• Valence electrons

• Free electrons

• Bonding electrons

Why are valence electrons important in chemistry?

• They determine the atomic mass

• They form chemical bonds

• They are found in the nucleus

• They are not important