M4

Question 1

general term to describe any atom that is connected by bond

Answer 1

molecule

Question 2

molecule that is made of atoms from different elements

Answer 2

compound

Question 3

relationship of molecule and compound

Answer 3

all compounds are molecules, but not all molecules are compounds

Question 4

if the electronegativity is low

Answer 4

electrons transfer to others

Question 5

if electronegativity is high

Answer 5

atom gain/attract electrons

Question 6

measure of the ability of an atom to attract bonding pairs of electrons

Answer 6

electronegativity (EN) (X)

Question 7

developed numerical scale of electrons

Answer 7

Linus Pauling

Question 8

what happen to electronegativity from left to right of periodic table

Answer 8

increases

Question 9

what happen to electronegativity from top to bottom

Answer 9

decreases

Question 10

energy released when an electron is incorporated into an atom

Answer 10

electron affinity

Question 11

tendency of individual atom to attract electrons

Answer 11

electronegativity

Question 12

observe the formation of very 1st noble gas compound

Answer 12

Neil bartlett

Question 13

very 1st noble gas compound

Answer 13

xenon tetrafluorine (XeFu)

Question 14

where does electronegativity depends

Answer 14

• atomic size
• number of inner shell electrons
• nuclear charge

Question 15

formula of electronegativity difference

Answer 15

EN = EN1 - EN2

Question 16

the force that binds 2 or more atoms together

Answer 16

chemical bonding

Question 17

chemical bonding needs _______ which refers to the ability of atoms to attract pairing electrons

Answer 17

electronegativity

Question 18

electrons at the outermost shell of any atom are called

Answer 18

valence electrons

Question 19

what group in the periodic table has the same valence electrons

Answer 19

vertical group

Question 20

mission to become stable and achieve octet state

Answer 20

valence electrons

Question 21

octet state of valence electrons

Answer 21

8 ve

Question 22

diagrams that represent the valence electrons of atoms within a molecule

Answer 22

lewis dot structure / electron dot diagram

Question 23

2 types of chemical bonding

Answer 23

• ionic bonding
• covalent bonding

Question 24

result from the attraction between oppositely charged ions

Answer 24

ionic bonding

Question 25

what do you call the positively charge element in ionic bond

Answer 25

cation

Question 26

what do you call the negatively charge element in ionic bond

Answer 26

anion

Question 27

a chemical bond that involves the sharing of electrons and same value of valence electrons

Answer 27

covalent bonding

Question 28

types of covalent bonding

Answer 28

• polar covalent
• non polar covalent

Question 29

unequal sharing of electrons

Answer 29

polar covalent

Question 30

equal sharing of electrons

Answer 30

non polar covalent

Question 31

the type of bond using electronegativity difference

Answer 31

• 0-0.5 non polar covalent bonding
• 0.6 - 0.19 polar covalent bonding
• 2.0 above ionic bond

Question 32

0 - 0.5 electronegativity difference

Answer 32

non polar covalent bonding

Question 33

0.6 - 1.9 electronegativity difference

Answer 33

polar covalent bonding

Question 34

2.0 and above

Answer 34

ionic bond