An element X has an atomic number 16which of the following statements about the electron configuration of X is CORRECT!?1X has one empty 3p orbital.2X has three valence orbitals that each contains two electrons of opposite spin3X has six valence electrons4The ion X^2- has the electron configuration [NE]3s^2 3p^25Only four of the six 3p orbitals contain electrons
Heating elements use Manganin wireThis is an alloy of nickel and iron, the nickel prevents oxidization and helps to keep the resistance constant over the temperature range.
