2023 Unit 3 CP4 Review Game Atoms and Atomic structure

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 an atom with 3 valence electrons have?

Back

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

What is the atomic number of an atom with 2 protons?

Back

2

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

Which element has 49 protons?

Back

Indium (In) has 49 protons.

Front

What happens when an electron drops from a higher to a lower energy level?

Back

When an electron drops from a higher to a lower energy level, it emits energy in the form of light.

Front

What is a Lewis structure?

Back

A Lewis structure is a diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist.

Front

Which Lewis structure is NOT a correct representation?

Back

D is NOT a correct representation.

Front

What is the significance of the number of protons in an atom?

Back

The number of protons determines the element's identity and its position on the periodic table.