Chemistry Semester 1 Final Exam Study Guide

Front

What two types of elements form a covalent bond?

Back

Nonmetal/Nonmetal

Front

What is a compound?

Back

A substance with 2 or more different elements chemically combined.

Front

How many neutrons does an iron atom with a mass number of 56 and atomic number 26 have?

Back

30

Front

What are cations?

Back

Elements that have lost one or more electrons.

Front

Which element is in period 5 group 17?

Back

Iodine.

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 ionic bond and a covalent bond?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is the law of conservation of mass?

Back

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

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by increasing atomic number.