electron arrangement

Front

What happens to the energy of an electron when it moves closer to the nucleus?

Back

The energy of the electron decreases.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the atom's outermost energy level.

Front

How many valence electrons does Silicon (Si) have?

Back

Silicon has 4 valence electrons.

Front

What is the maximum number of electrons that one orbital can hold?

Back

One orbital can hold a maximum of 2 electrons.

Front

Which particles change the charge in atoms when ions are formed?

Back

Electrons change the charge in atoms when ions are formed.

Front

What is the electron configuration of an atom?

Back

The electron configuration of an atom describes the distribution of electrons in its atomic orbitals.

Front

What is the significance of the outermost energy level in an atom?

Back

The outermost energy level determines the chemical properties and reactivity of the atom.

Front

How do electrons fill orbitals according to the Aufbau principle?

Back

Electrons fill orbitals starting from the lowest energy level to the highest.

Front

What is the Pauli Exclusion Principle?

Back

The Pauli Exclusion Principle states that no two electrons in an atom can have the same set of four quantum numbers.

Front

What is an ion?

Back

An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net charge.