Inorganic Chemistry Answers

What is hydrogen

This contains the name of each element. Fill in the missing blanks with the appropriate nuclear symbol, atomic number, mass number, number of protons, electrons and neutrons of the following elements:

Element Name

Nuclear Symbol

Atomic Number

Mass Number

# of Protons

# of Electrons

# of Neutrons

1.helium

2.potassium

3.boron

4.calcium

5.oxygen

6.silver

7.aluminum

8.sodium

9.tungsten

10.bismuth

 Chemical bonding refers to the formation of a bond between two or more atoms, molecules or ions. Answer the following questions in regard to chemical bond in a chemical compound.

 (a) Draw the Lewis structure and predict the molecular geometry of the following molecules:

i.  NH3 ii.  H2O  iii.  CF4

(b) Using Lewis dot structures, indicate the movement of electrons during the formation of the ionic compound calcium oxide (CaO) from calcium (Ca) and oxygen (O).

(c) Sketch the geometry of the NF3 molecule. Indicate lone pairs of electrons on nitrogen.