Covalent Bonds

Question 1

what is a covalent bond?

Answer 1

when non-metal atoms bond together and share a pair of electrons to make covalent bonds

Question 2

why are covalent bonds strong?

Answer 2

positively charged nuclei are strongly attracted

Question 3

what does every single covalent bond provide

Answer 3

1 shared electron

Question 4

in what does covalent bonding happen

Answer 4

compounds of non-metals H2O
non-metal elements Cl2

Question 5

how can you show covalent bonds?

Answer 5

overlapping dot and cross diagrams
stick diagrams 2d
ball and stick 3d

Question 6

dot and cross diagram pros and cons

Answer 6

pros-
which atoms the electron comes from

cons-
doesn’t show the relative sizes
how the atoms are arranged in space

Question 7

stick diagram pros and cons

Answer 7

pros

Question 8

what are the properties of simple covalent bonds?

Answer 8

-weak intermolecular forces
-do not conduct electricity
-usually gases or liquids

Question 9

properties of giant covalent structures

Answer 9

-solid
-high mp/bp