Which of these statements is true?
a. some molecules may contain no atoms.
b. some elements found in nature exist as molecules.
c. some compounds include only one type of element.
d. some atoms are made of two or more different elements.

Where are each of the three particles located within the atom?

One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.

What is the common name for the compound shown here? enter the common name of the compound shown?