Isotopes Basics

Front

The atomic mass of an element is the ___.

Back

weighted average of the masses of the isotopes of the element

Front

Chlorine has two naturally occurring isotopes, Cl-35 and Cl-37. The atomic mass of chlorine is 35.45. Which isotope is more abundant?

Back

Cl-35

Front

How can you calculate the mass of an atom?

Back

protons + neutrons

Front

An element has 8 protons, 6 neutrons and 8 electrons- what element is it and what is its mass?

Back

Oxygen, 14 amu

Front

An element has 7 protons, 10 neutrons and 6 electrons. What element is it and what is its mass?

Back

Nitrogen, 17 amu

Front

How many neutrons in C-14? Options: 6, 7, 14, 8

Back

8

Front

Which atom has 4 neutrons? Options: Li-6, Li-7, Li-8, they have the same # of neutrons

Back

Li-7

Front

How many neutrons does the isotope of lithium have?

Back

5

Front

How many protons does this isotope of titanium have? Options: 48, 22, 26, 70

Back

22

Front

In a correctly written symbol, what is located in the "A" position?

Back

mass number