genral knowlage

Question 1

what is the charge of a proton

Answer 1

+1

Question 2

what is the charge of a neutron

Answer 2

0

Question 3

what is the charge of a electron

Answer 3

-1

Question 4

why do electrons on the 7t sublevel have less electroastic attraction to the nucleus then electrons in the sub level

Answer 4

Electrons in the 7th sublevel are farther away from the nucleus compared to those in lower sublevels.

Question 5

how to calculate number of neutrons

Answer 5

N = mass number - atomic number

Question 6

how to calculate number of electrons

Answer 6

e- = atomic number - ionic charge

Question 7

name the properties of metals

Answer 7

high melting points, high heat and electrical current and malleable

Question 8

name the properties of non- metals

Answer 8

low melting points, do not conduct heat and electisity

Question 9

what are metalloids

Answer 9

silver coloured, soft metals with low density. They easily react with water and halogens. Their reactivity increaces down the group.

Question 10

name all the groups

Answer 10

Alkaline
alkaline earth metals
halogens
noble gases\

Question 11

what is ionic bonding

Answer 11

atoms transfer valence electrons to eachother so that the element can have a full valence electron

Question 12

ionic bonding happens between what kind of elements

Answer 12

metals and non metals

Question 13

what are the properties of ionic bonding

Answer 13

hgih melting and boiling points,soild at room tempreture, soluable in water

Question 14

what is covelent bonding

Answer 14

where 2 elements share electrons to form bonds

Question 15

what kind of elements do colevent bonds happen between

Answer 15

metal and metal

Question 16

what is an isotope

Answer 16

Atoms with the same number of protons but different numbers of neutrons

Question 17

how can one infer the apporximate percentage abundance in isotope elements by just being given the atomic mass of both isotopes

Answer 17

The isotope with an atomic mass closer to the average atomic mass will have a higher abundance.

Question 18

what does abundance add up to

Answer 18

100

Question 19

what is the ram formula

Answer 19

Relative atomic mass =
(%1 times Atomic mass) / 100 +(%2 times Atomic mass) / 100 …………