Isotopes Practice

Front

How many neutrons does the isotope of lithium have?

Back

5

Front

Are the following elements isotopes or different elements? Element x: 6 protons, 7 neutrons; Element y: 7 protons, 7 neutrons.

Back

different elements

Front

How many neutrons in Carbon-14?

Back

8

Front

Are Element x (27 protons, 82 neutrons) and Element y (27 protons, 83 neutrons) isotopes or different elements?

Back

isotopes of same element

Front

Most of the mass in an atom is made up of?

Back

protons and neutrons

Front

Are the following elements isotopes or different elements? Element x: 17 protons, 18 neutrons. Element y: 18 protons, 17 neutrons.

Back

different elements

Front

Element x has 56 protons and 81 neutrons. Element y has 56 protons and 82 neutrons. Are they isotopes or different elements?

Back

isotopes of same element

Front

In the following pair, are they isotopes or different elements? Element x has an atomic number of 20 and a mass number of 40. Element y has an atomic number of 20 and a mass number of 41.

Back

isotopes of same element

Front

Element x: Atomic number 92, Mass number 238. Element y: 92 protons, 143 neutrons. Are they isotopes or different elements?

Back

isotopes of same element

Front

Element with atomic mass 56 and 36 neutrons.

Back

Ca