Adv. Chemistry - Final Exam Sem 1 2023

Front

What does 'a' represent in chemistry?

Back

Electron

Front

What is a charged atom called?

Back

Ion

Front

How many protons does sulfur have?

Back

16

Front

What are the metals in group 2 known as?

Back

Alkaline Earth Metals

Front

What happens during a chemical change?

Back

A substance is changed at the atomic level, bonds are broken and formed, and a new substance is made.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the nucleus of an atom?

Back

The central part of an atom containing protons and neutrons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.