Question

What is the central atom? (1 point for each molecule)
How many atoms are bonded to the central atom? (1 point for each molecule)
How many lone pairs of electrons are on the central atom? (1 point for each molecule)
How many single bonds are there in this molecule? (1 point for each molecule)
How many multiple bonds (double and/or triple) are there in this molecule? (1 point for each molecule)

H2O, NH3, CH4, CO2

Answer 1

@dan815 @e.mccormick @EclipsedStar @ganeshie8 @jim_thompson5910 @zepdrix

Answer 2

@Compassionate @Whitemonsterbunny17 @Zale101 @Jaynator495 @sweetburger @Owlcoffee @Kitten_is_back

Answer 3

\(Answer\) \(Hints\)

1) The central atom is a Be with 4 electrons, or a B or Al with 6. These elements do not obey the octet rule. @Lexaaa_ganja
2) in case of tetrahedral: 4 , trigonal bipyramidal: 5 and octahedral: 6
3) Consider example, CO2 , C has 4 electrons and forums 4 double bonds, so 0 lone pairs. Carbon is central atom. another example CH4 , as C is central atom , it has 4 electrons , and is having 4 single bonds, so 0 pairs.
4) i found, CH4 = 4 and CO2 = 0, now it's your turn.
5) i will solve this, CO2 = 2 (there are two double covalent bonds in this molecule)