Physical Science - Periodic Table

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.

Front

How many valence electrons does Carbon have?

Back

Carbon has 4 valence electrons.

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 Nickel?

Back

The atomic number of Nickel is 28.

Front

How many valence electrons does Krypton have?

Back

Krypton has 8 valence electrons.

Front

What is a group (or family) in the periodic table?

Back

A group (or family) is a vertical column in the periodic table that contains elements with similar chemical properties.

Front

What does the symbol 'H' represent in the periodic table?

Back

The symbol 'H' represents Hydrogen.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What are periods in the periodic table?

Back

Periods are horizontal rows in the periodic table that indicate the number of electron shells in the elements.

Front

What is the difference between atomic mass and atomic number?

Back

Atomic mass is the weighted average mass of an element's isotopes, while atomic number is the number of protons in the nucleus.