Chemistry - Semester 1 Final Exam Review

Front

What is the correct name for P³⁻?

Back

phosphide

Front

What does the number 1.00794 represent in chemistry?

Back

atomic mass

Front

What is the name of the compound NaF?

Back

sodium fluoride

Front

Which element is in period 1, group 8 of the periodic table?

Back

Helium

Front

What is the atomic mass of silicon?

Back

28

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

Define ionic bond.

Back

A chemical bond formed between two ions with opposite charges.

Front

What is the formula for calculating atomic mass?

Back

Atomic mass = (mass of isotope 1 × % abundance) + (mass of isotope 2 × % abundance) + ...

Front

What is a molecule?

Back

A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound.

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.