3.1 Periodicity

Question 1

Electronegativity

Answer 1

The ability of an atom to attract the electron pair in a covalent bond to itself

Question 2

Electronegativity _____ down a group and ______ across a period

Answer 2

Electronegativity decreases down a group and increases across a period

Question 3

Ionisation energy generally _____ down a group and _____ across a period

Answer 3

Ionisation energy generally decreases down a group and increases across a period

Question 4

Nuclear charge _____ down a group and ______ across a period

Answer 4

Nuclear charge decreases down a group and increases across a period

Question 5

Atomic radius _____ down a group and _____ across a period

Answer 5

Atomic radius increases down a group and decreases across a period

Question 6

Atomic shielding _____ down a group and ______ across a period

Answer 6

Atomic shielding increases down a group and stays the same across a period