Isotopes/structure of an atom

Front

Isotopes of an element contain an equal number of protons but a different number of ________________.

Back

neutrons

Front

How many protons are in the isotope pictured above?

Back

29

Front

How many neutrons are in the isotope pictured above?

Back

34

Front

The mass number of an isotope is made up of which subatomic particles?

Back

protons and neutrons

Front

What is the number of protons in phosphorus-31?

Back

15

Front

The atomic number of an element is the total number of which subatomic particle found in the nucleus?

Back

Proton

Front

An unknown element has two naturally occurring isotopes. One has a mass of 10.01 amu and % abundance of 19.8%. The other has a mass of 10.99 amu and % abundance of 80.2%. Calculate the atomic mass.

Back

10.8 amu

Front

Element X has 13 neutrons with a mass number of 28. Element Y has 13 protons. These elements are: Different elements, Isotopes

Back

Different elements

Front

Element Q has 56 protons and 18 neutrons. Element R has 56 protons and 17 neutrons. These elements are: different elements, isotopes.

Back

isotopes

Front

Mass number of an element with 11 protons and 12 neutrons?

Back

23