edexcel) chemistry roots

Topic 1 (chemistry A level
edexcel)

Atomic number - correct answersNumber of protons in the nucleus

First ionisation energy - correct answersEnergy required when one mole of gaseous
atoms forms one mole of gaseous ions

How does first ionisation energy change down a group? - correct answersIt decreases

Isotope - correct answersAtoms with the same number of neutrons but different number
of neutrons

Mass number - correct answersnumber of protons and neutrons in the nucleus

Number of electrons in a D orbital - correct answers10

Number of electrons in a F orbital - correct answers14

Number of electrons in a P orbital - correct answers6

Number of electrons in an S orbital - correct answers2

Number of orbitals for an D sub shell - correct answers5

Number of orbitals for an F sub shell - correct answers7

Number of orbitals for an P sub shell - correct answers3

Number of orbitals for an S sub shell - correct answers1

Orbital - correct answersA region within an atom which can hold up to two electrons with
opposite spins

Periodicity - correct answersRepeating pattern of physical/chemical properties across
different periods