Write the electronic configuration of the following elements: 1. A non metal which is used in the lead of pencil 2. The most abundant element in the universe. 3. A most abundant metal on the earth 4. An element which is used in making of the tip of matchsticks. 5. An element which supports life.

Write the electronic configuration of the following elements: 1. A n

1.	Write the electronic configuration of the following elements: 1. A non metal which is used in the lead of pencil 2. The most abundant element in the universe. 3. A most abundant metal on the earth 4. An element which is used in making of the tip of matchsticks. 5. An element which supports life.
Answer» Chromium (Z=24) contains five electrons in 3d SUBSHELL.(b) Magnesium (Z=12), an alkaline earth metal, can READILY lose two electrons to form Mg 2+ .(c) Oxygen (Z=8) gains 2 electrons to form O 2− .(d) Halogens (goup 17) contains metal (iodine), non metals (F,CL and BR), liquid BROMINE and gases.Explanation:Mark me brilent bro