Answer:
D. Genes received from the offsprings parents.
Explanation:
proton and neutron
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need more like a image or somthing but it might be c
15.99937 is the value of this question answer
A
Lanthanides share the following common properties: Silvery-white metals that tarnish when exposed to air, forming their oxides. Relatively soft metals. Hardness increases somewhat with higher atomic number.
