S1 Final 2024

Front

To become a negative 2 ion, an atom must ____________.

Back

gained 2 electrons

Front

What is the oxidation number of aluminum?

Back

+3

Front

What is the charge of an atom when it loses 2 electrons?

Back

+2

Front

Which of these elements belongs to the Halogen family?

Back

F

Front

What element has the least electron pull (electronegativity)?

Back

Rb

Front

Define ionization energy.

Back

The energy required to remove an electron from an atom.

Front

What is electronegativity?

Back

A measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What is the general trend of electronegativity in the periodic table?

Back

Electronegativity increases across a period and decreases down a group.

Front

What is a cation?

Back

A positively charged ion formed when an atom loses electrons.

Front

What is an anion?

Back

A negatively charged ion formed when an atom gains electrons.