Answer:
This is Aluminium.
3 Valency electrons.
Explanation:
The atomic number is 13 and the electronic configuration is
1s22s22p63s23p1 . This is Aluminium.
It has 3 valency electrons. (3s23p1).
The element that has the greatest attraction for sulfur electrons is I (Iodine)
You that Mg is the metal if in the periodic table it lands between group 1-12. So yeas Mg is a metal because it lands in group 2.
Answer:
Explanation:
there should be more showing than telling
The gas that is having lowest density will diffuse faster than other gases. As lesser denser will diffuse more quickly than the one which is more denser. Density is directly proportional to mass of the substance that is more mass of the substance is , more denser it will be. So here the Gas A is having lesser molecular weight than the other gases so it will diffuse more quickly than the other gases.
Gas A; MW = 14.28 g/mol
