atomic strcture
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STATE WHY ATOMS HAVE NO OVERALL CHARGE
because number of postive protons is equal to negative electrons
state why both isotopes react in the same way
because they have same electronic configuration
relative mass of proton and neutron
1,1
rule of relative atomic mass
r1ar1+r1ar2/sum of ratiosnnj
give reason why x has a 3+ charge
has lost 3 electrons
explain why y and z are isotopes of the same element
bec has same number of electrons but different phisical prporties
state meaning of atomic number
it is the number of protons inside nucleus
give a reason why both isotopes of bromine have the same chemical proprties
because have same electronic congiguration
which of this have the smallest mass electron,neutron,nucleus,proton
electron
what is relative mass of electron,proton,neutron
1/8000,0.005,1,1
give the symbol of the element that has a relative atomic mass of 14
n
identfy the group whose atoms form ions with a charge of -1
7
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
observation:effervense explain:they have sME ELECTRONIC CONFIGURATION
What is meant by atom
Smallest particle of element that can take in chemical reaction and show all properties that element
Why atom is neutral?
Because number of protons equal number of electrons