Question

Write the atomic number, mass number, electronic configuration, ground state, excited state
configuration define catenation of carbon.​

Answer 1

Atomic number of carbon is 6 which is the number of electron or proton..mass number is 12 which is sum of proton and neutron electronic configuration will be of atomic number so it will be 1s2 2s2 2p2 and this will be for ground state also for excited state it will be 1s2 2s1 2px1 2py1 2pz1 and catenation is the self linking property of carbon by which it forms number of organic compounds

Hope that helps