I think it's the Terminals
The sigma bonds are formed when orbitals overlap side by side and is related to covalent bond In ethylene the number of sigma bond are 5.
Reason, carbon has four carbon -hydrogen bond which form four sigma bond. The other sigma bond is between carbon=carbon bond thus ethylene has 5 sigma bond
Answer:
a)beta decay; to reduce the number of neutrons
Explanation:
When an isotope decays by beta decay, a neutron is converted into a proton, an electron and a neutrino (a particle that serves to balance spins). This process reduces the neutron/proton ratio.
During the beta decay of carbon-14, an atom of 14C decays into an atom of 14N. Hence the number of protons in the atom increases by one, creating a nitrogen atom.
Oxygen is -2, Na is +1, and Mn is +7
