Identify ions, molecular ions and free radicals from the following species, CN-, CN, He+2, N-3,CH+4 ​

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

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.

In general metals get as you move from left to right across the periodic table.