bonding of the first 20 elements

Question 1

what is the trend going down a group on the periodic table?

Answer 1

the size of the atom increases (covalent radius)

Question 2

what is the trend going across the periodic table?

Answer 2

the increase in nuclear charge pulls on the shells decreasing the size of the atom

Question 3

what is the strongest type of bonding broken when sulphur melts

Answer 3

the intermolecular forces

Question 4

what are the metallic elements

Answer 4

-positive metal ions
-dislocated electrons
-elements(3,4,11,12,13,19,20)

Question 5

what are the covalent network elements?

Answer 5

• pure covalent bonds
  -equal sharing up electrons

Question 6

what are the covalent molecular elements?

Answer 6

diatomic elements
-strong covalent bond
- intermolecular molecular forces
- P4,s8

Question 7

what are the diatomic elements?

Answer 7

H2,N2,02,F2,CL2

Question 8

what are the monatomic

Answer 8

dont usally bond
last column (group 0)

Question 9

what do the elements nitrogen, oxygen, fluorine and neon have in common?

Answer 9

they are all are gases at room temperature.

Question 10

what are the van der Waals’ force?

Answer 10

Hydrogen bond
London dispersion force
Permanent dipole