An atom of an element contains 29 electrons and 35 neutrons. Deduce (

1.	An atom of an element contains 29 electrons and 35 neutrons. Deduce (i) the number of protons and (ii) the electronic configuration of the element (iii) Identify the element.
Answer» (i) For an atom to be neutral, the number of protons is equal to the number of electrons. ∴ Number of protons in the atom of the given element = 29 (ii) The electronic configuration of the atom is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²3d¹⁰ (iii) Copper

An atom of an element contains 29 electrons and 35 neutrons. Deduce (i) the number of protons and (ii) the electronic configuration of the element (iii) Identify the element.

Answer»

(i) For an atom to be neutral, the number of protons is equal to the number of electrons.

∴ Number of protons in the atom of the given element = 29

(ii) The electronic configuration of the atom is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²3d¹⁰

(iii) Copper