ch6 bonding ws answers (and text p160 #41, 43, 45 )

Bonding worksheet name____________________pd__

Fill in this table

Type of bond Between what type of elements? What happens to outer electrons? Example

1. ionic metal-nonmetal lost by metal, gained by nonmetal. NaCl

2. covalent nonmetal-nonmetal electron pairs shared H₂O

3. metallic metal- metal outer electrons move freely brass (Cu and zinc)

Write the electron dot for:

K one dot

Kr 8 dots

Sr 2 dots

H 1dot

Ca 2dots

Al 3dots

C 4dots

P 5dots

S 6dots

Co 2dots

Predict the type of bond between:

Elements involved

K and Br = ionic

Mg & Cl = ionic

Ca & O = ionic

Na & He= not possible

P & I =covalent

Ca & K= metallic

S & Cl = covalent

predict the formulas for compounds between these elements, then,

Draw lewis structures for 5 of the bonds in the above table.

you can not draw the metallic or the not possible bond; that leaves 3; when drawing covalent lewis structures, the atom forming the most bonds must be the central atom

text p 160.

41

Ca+1 (should be +2)

43

a[Ne]3s2. pd3, group2

b [Ne] 3s2 3p3. pd 3, group 15

c. [Ar]4s2 3d1. p4, group3

d. [Kr] 5s2 4d1 pd5 group 3

45

a Li+1 He

b Rb +1 Kr

c O -2 Ne

d F -1 Ne

e Mg +2 Ne

f Al +3 Ne

g P -3 Ar

h S -2 Ar

i Br -1 Kr

j Ba +2 Xe

i