atomic strcture

Question 1

STATE WHY ATOMS HAVE NO OVERALL CHARGE

Answer 1

because number of postive protons is equal to negative electrons

Question 2

state why both isotopes react in the same way

Answer 2

because they have same electronic configuration

Question 3

relative mass of proton and neutron

Answer 3

1,1

Question 4

rule of relative atomic mass

Answer 4

r1ar1+r1ar2/sum of ratiosnnj

Question 5

give reason why x has a 3+ charge

Answer 5

has lost 3 electrons

Question 6

explain why y and z are isotopes of the same element

Answer 6

bec has same number of electrons but different phisical prporties

Question 7

state meaning of atomic number

Answer 7

it is the number of protons inside nucleus

Question 8

give a reason why both isotopes of bromine have the same chemical proprties

Answer 8

because have same electronic congiguration

Question 9

which of this have the smallest mass electron,neutron,nucleus,proton

Answer 9

electron

Question 10

what is relative mass of electron,proton,neutron

Answer 10

1/8000,0.005,1,1

Question 11

give the symbol of the element that has a relative atomic mass of 14

Answer 11

n

Question 12

identfy the group whose atoms form ions with a charge of -1

Answer 12

7

Question 13

what would be seen if a sample of the element containing only atoms with a mass number of 26 was added to dilute sulphric acid?explain

Answer 13

observation:effervense
explain:they have sME ELECTRONIC CONFIGURATION

Question 14

What is meant by atom

Answer 14

Smallest particle of element that can take in chemical reaction and show all properties that element

Question 15

Why atom is neutral?

Answer 15

Because number of protons equal number of electrons