CP Chem Exam Review Part 1

Front

What is the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons in order to have eight valence electrons, achieving a stable electron configuration.

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 significance of the electron configuration [Ne] 3s²3p⁵?

Back

This electron configuration indicates that the element is in period 3 and group 17 of the periodic table, which corresponds to the element chlorine.

Front

What does the '1' in the notation for Helium represent?

Back

The '1' represents the energy level of the electrons in the atom.

Front

What is the difference between s-block, p-block, d-block, and f-block elements?

Back

s-block elements have their outermost electrons in s orbitals, p-block elements in p orbitals, d-block elements in d orbitals, and f-block elements in f orbitals.

Front

How do you determine the group number of an element in the periodic table?

Back

The group number corresponds to the number of valence electrons in the outermost shell of the element.

Front

What is the relationship between wavelength and frequency in electromagnetic waves?

Back

Wavelength and frequency are inversely related; as the wavelength increases, the frequency decreases, and vice versa.

Front

What is the role of metals in emitting electromagnetic waves?

Back

Metals can emit electromagnetic waves when their electrons are excited and then return to a lower energy state, releasing energy in the form of light.

Front

What is the periodic trend for atomic size?

Back

Atomic size generally increases down a group and decreases across a period from left to right due to increasing nuclear charge.

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state.