What are some examples of isotopes?

Question

quickly !

Answer 1

Hydrogen (1 proton)

--neutron Þ deuteron 2H

--2 neutrons Þ triton 3H

Lithium (3 protons)

--usually 3 or 4 neutrons (6Li, 7Li)

--also exists with 5, 6 and 8 neutrons! (8Li, 9Li, 11Li)

--Not with 2 or 7.

Answer 2

carbon 12 has an atomic mass of 12 because it has 6 protons and 6 neutrons.  If carbon has a different amount of neutrons, it is considered an isotope of carbon.  Carbon 13 has 6 protons and 7 neutrons and is an isotope of carbon.  Same protons means same element; different neutrons means different isotope.

Answer 3

Carbon-12 and carbon-14

Hydrogen-1 , hydrogen-2 and hydrogen-3

Chlorine-35 and chlorine-37

Go here:

http://www.webelements.com/isotopes.html

Click on an element to find its isotopes