24/12MG and 26/Mg are symbols of two isotopes of magnesium.
a) Compare the atoms of these isotopes with respect to:
1) The composition of their nuclei.
2) Their electronic configurations.
b)Give reasons why the two isotopes if magnesium have different mass numbers.
Answers
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nucleus of Mg-24 has 12 proton and 12 neutrons
nucleus of Mg-26 has 12prtoton and 14 neutrons
electronic configuration of both
k-2
l-8
m-2
the difference in the number of neutrons is the cause
nucleus of Mg-26 has 12prtoton and 14 neutrons
electronic configuration of both
k-2
l-8
m-2
the difference in the number of neutrons is the cause
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