MOCK TEST FOR FINALS DAY 1 - CHEM

Front

What is the molecular shape of BeCl₂?

Back

Linear

Front

Which trend increases across a period?

Back

Electronegativity

Front

What is the ground state electron configuration for neon (Ne)?

Back

1s² 2s² 2p⁶

Front

Why are elements in Group 18 chemically stable?

Back

They have full outer electron shells.

Front

What describes ionic bonds?

Back

They form between metals and nonmetals.

Front

What is the atomic number of Neon (Ne)?

Back

10

Front

What is the definition of electronegativity?

Back

The tendency of an atom to attract electrons in a bond.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve transfer of electrons; covalent bonds involve sharing of electrons.

Front

What is the significance of the octet rule?

Back

Atoms tend to gain, lose, or share electrons to have eight electrons in their outer shell.

Front

What is a chemical reaction?

Back

A process where substances (reactants) are transformed into different substances (products).