c1

Question 1

how many electrons can each orbital hold?

Answer 1

2 electrons

Question 2

how many orbitals does s sub shell have?

Answer 2

1 orbital

Question 3

how many orbitals does p sub shell have?

Answer 3

three orbitals

Question 4

how many orbitals does d sub shells have?

Answer 4

five orbitals

Question 5

what is the shape of sorbital?

Answer 5

spherical

Question 6

whatistheshapeofporbitals?

Answer 6

dumbbell

Question 7

whatistheshapeofdorbitals?

Answer 7

clovershape

Question 8

what is Pauli’s exclusion principle?

Answer 8

orbitals can hold up to two electrons as long as they have opposite spin

Question 9

what happens when atoms lose an electron?

Answer 9

form positive ions

Question 10

what happens when atoms gain an electron?

Answer 10

form negative ions

Question 11

what happens when transfer of electrons occur?

Answer 11

they form an ionic bond in which have opposite charges that make them attracted to each other by electrostatic force.

Question 12

what is a ionic bond?

Answer 12

an ionic bond is a chemical bond formed by the electrostatic attraction between cations and anions.

Question 13

what isthenumberofavogadosconstant?

Answer 13

6.023x10(23)

Question 14

what is the equation for working out moles?

Answer 14

number of moles= mass divided by molar mass

Question 15

what is the equation to find out number of moles in concentration of solutions?

Answer 15

number of moles= concentration of solution x volume of solution

n= cxv
n= mol
c=m
v=dm3

Question 16

why do alloys have a higher strength than pure metals?

Answer 16

this is because the atoms of the different elements are different sizes which distrupt’s the regular layered structure and so the different layers cannot slide over one another

Question 17

in which metals does metallic bonding occur?

Answer 17

metals with metals

Question 18

why does metallic bonding have high thermal and electrical conductivity?

Answer 18

metallic bonding has high thermal and electrical conductivity due to its delocalised electron as it carries electrical current and thermal energy through out the structure.

Question 19

why are metals malleable?

Answer 19

due to their regular layered structure which allows the different layers to slide over one another

Question 20

what are alloys?

Answer 20

alloys are 2 or more different elements mixing together with two different metals

Question 21

whatistheequationtofindoutmass?

Answer 21

mass=MrxMol

Question 22

howdoyoufindoutthenoofmoles?

Answer 22

molarmass

molarmass=relativeformulamass

Question 23

whatistheequationtofindoutconcentrationofsolution?

Answer 23

noofmoles(mol)concentration(M)xvolumeofconcentration(dm3)

Question 24

whatarethetwoequationsforpercetageyielding?

Answer 24

py=actualmass
——————-x100
theoreticalmass

py=actualnoofmoles
——————————-x100
theoreticalnoofmoles

Question 25

what isionicbonding?

Answer 25

itisbetweenmetalsandnonmetals.itisanelectrostaticforceofattraction between oppositely charged ions in a lattice

Question 26

can ionic compounds conduct electricity?

Answer 26

cannot conduct electricity as a soild but can when molten/dissolved since ions are free to move around and carry charge

Question 27

do ionic compounds have high melting and boiling point?

Answer 27

Yes due to strong electrostatic force of attraction between ions which require lots of energy to be broken down