Atomic Model (Flashcardizz)

Front

What are valence electrons?

Back

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

Front

What is the atomic number of an element?

Back

The atomic number of an element is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

Name the element with the atomic number 2.

Back

The element with the atomic number 2 is Helium (He).

Front

What is the symbol for Magnesium?

Back

The symbol for Magnesium is Mg.

Front

What is the element with the symbol Na?

Back

The element with the symbol Na is Sodium.

Front

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

Back

The number of protons in an atom is equal to the atomic number of the element.

Front

What is the significance of valence electrons in chemical reactions?

Back

Valence electrons determine how an atom can bond with other atoms and are crucial in forming chemical compounds.

Front

What element is represented by the symbol Ar?

Back

The element represented by the symbol Ar is Argon.

Front

What is the relationship between atomic number and element identity?

Back

The atomic number uniquely identifies an element; no two elements can have the same atomic number.

Front

What is the electron configuration for Sodium (Na)?

Back

The electron configuration for Sodium (Na) is 1s² 2s² 2p⁶ 3s¹.