Unit 1 Fundamentals

Front

Which element is in period 3 and group 14?

Back

Silicon is the element in period 3 and group 14.

Front

What is the proper equation for determining the number of neutrons for a given isotope?

Back

The equation is mass # - atomic #.

Front

If an element gains an electron, what type of ion is this?

Back

This type of ion is called an Anion.

Front

What is the correct symbol for a Bromine ion that gains 1 electron?

Back

The correct symbol is Br⁻¹.

Front

Which elements are colored red on the periodic table?

Back

Nonmetals are colored red.

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is a cation?

Back

A cation is a positively charged ion, formed by the loss of electrons.

Front

What is an anion?

Back

An anion is a negatively charged ion, formed by the gain of electrons.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is the mass number?

Back

The mass number is the total number of protons and neutrons in an atom's nucleus.