2024 Chem 1 Semester 1 review

Front

What is the top number in isotope notation called?

Back

Mass number

Front

What is chemistry the study of?

Back

Matter

Front

Which of the following are examples of elements? O, C, Au, Ag, Al

Back

C, Au, Ag, Al

Front

What are vertical columns on the periodic table called?

Back

Groups/Families

Front

Which two subatomic particles are found in the nucleus of an atom?

Back

Proton and neutron

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.