What will be the Atomic number and Columb?

1) What will be the atomic number of an atom having 29 electrons?
(2) Charge of 1 coulomb and charge of -2 coulomb will attract or repel?
(3) What will be the electronic distribution of an atom of atomic number 23?

The order wise answers of your questions are given below.

(1) Atomic No. of an atom consisting of 29 electron is 29, since atomic No. is No. of electrons revolving around the nucleus in an atom.

(2) Since charge of 1 coulomb has +ve polarity and charge of -2 coulomb has negative polarity, so they will attract each other. (Opposite polarity charges attract each other)

(3) The electronic configuration of an atom consisting of 23 electrons is given below.

K shell=2 electrons

L shell =8 electrons

M shell=13 electrons