Counting Subatomic Particles

Front

If a bromine ion has a -1 charge, how many electrons are there?

Back

36

Front

How many protons does iodine (I) have?

Back

53

Front

The atomic number of an element is equal to the number of ______.

Back

Protons

Front

How many protons does titanium (Ti) have?

Back

22

Front

What is the atomic number of sodium (Na)?

Back

11

Front

What is the charge of a neutral atom?

Back

0

Front

What is the relationship between protons and electrons in a neutral atom?

Back

They are equal in number.

Front

What particle determines the identity of an element?

Back

Protons

Front

What is the mass number of an atom?

Back

The sum of protons and neutrons.

Front

How many neutrons are in a bromine atom with a mass number of 80?

Back

45 (80 - 35 = 45)