Atomic Structure Test Review

Front

Subatomic particles with a positive charge

Back

Protons are subatomic particles found in the nucleus of an atom, carrying a positive electrical charge.

Front

Which of the following is a p block element? (Ca, Ar, Re, Au)

Back

Argon (Ar) is a p block element, located in group 18 of the periodic table.

Front

Which element is represented by this orbital notation? (Neon, Sodium, Magnesium, Aluminum)

Back

Sodium is represented by the orbital notation 1s² 2s² 2p⁶ 3s¹.

Front

What is the noble gas configuration for beryllium?

Back

The noble gas configuration for beryllium is [He] 2s².

Front

Value representing the number of protons in an element

Back

The atomic number represents the number of protons in an element.

Front

What are neutrons?

Back

Neutrons are subatomic particles found in the nucleus of an atom, with no electrical charge.

Front

What is the atomic mass?

Back

Atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

Define isotopes.

Back

Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons.

Front

What are valence electrons?

Back

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

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.