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, meaning that an orbital can hold a maximum of two electrons with opposite spins.

Front

What is the electron configuration for Iodine (I)?

Back

The electron configuration for Iodine (I) is [Kr] 5s² 4d¹⁰ 5p⁵.

Front

What are energy levels in an atom?

Back

Energy levels are regions around the nucleus of an atom where electrons are likely to be found, each corresponding to a specific energy state.

Front

What shape is the s orbital?

Back

The s orbital is spherical in shape.

Front

What is the charge of an atom that has gained one electron?

Back

The charge of an atom that has gained one electron is -1.

Front

What is the maximum number of electrons that can occupy a single orbital?

Back

A single orbital can hold a maximum of two electrons.

Front

What are the four quantum numbers?

Back

The four quantum numbers are: 1) Principal quantum number (n), 2) Angular momentum quantum number (l), 3) Magnetic quantum number (m_l), 4) Spin quantum number (m_s).

Front

What is the difference between the s, p, d, and f orbitals?

Back

The s orbital is spherical, the p orbitals are dumbbell-shaped, the d orbitals have more complex shapes, and the f orbitals are even more complex.

Front

How do you determine the number of valence electrons in an element?

Back

The number of valence electrons can be determined by looking at the highest principal energy level and the number of electrons in that level.

Front

What is the significance of the periodic table's p block?

Back

The p block contains elements whose outermost electrons are in p orbitals, which include groups 13 to 18 of the periodic table.