Front

What is the Lewis Dot structure for Helium?

Back

Helium has 2 dots in its Lewis Dot structure, representing its 2 valence electrons.

Front

Is this a correct dot diagram for oxygen (O)?

Back

False. The correct dot diagram for oxygen should have 6 dots, representing its 6 valence electrons.

Front

What is the electron configuration of Fluorine?

Back

Fluorine has an electron configuration of 2.7, meaning it has 2 electrons in the first shell and 7 in the second.

Front

How many electrons are in the 3rd energy level for Argon (Ar)?

Back

Argon has 8 electrons in its 3rd energy level.

Front

What is the correct order of electrons for Sodium (Na) in a Bohr model?

Back

The correct order is 2e, 8e, 1e.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What is the maximum number of electrons in the 2nd energy level?

Back

The maximum number of electrons in the 2nd energy level is 8.

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 significance of the Bohr model?

Back

The Bohr model illustrates the arrangement of electrons in energy levels around the nucleus.

Front

How do you determine the number of neutrons in an atom?

Back

The number of neutrons can be found by subtracting the atomic number from the atomic mass.