marceldrinebasaysay Asked: January 2023 1what is the element of 1s 2s 2p6 3s 3p6 4s 2what is the atomic number of 1s 2s
marceldrinebasaysay Asked: January 2023 1what is the element of 1s 2s 2p6 3s 3p6 4s 2what is the atomic number of 1s 2s 2p6 3s 3p6 4s 3d10