Ahelium atom has 2 protons and 2 neutrons. what is the mass number of this atom?

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3

Table sugar completely dissolved in water is an example of a?

Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released