Answer:
what is that i connot understand your question
Explanation:
im sorry i connot answer your question
Answer:
atoms of isotopes of an element have different numbers of neutrons.
Explanation:
isotopes have the same number of protons, but different numbers of neutrons.
Answer:
people as: it Is less expensive. easy to carry
Answer:
Maybe they both have valence electrons and can be used in chemical reactions. I could be wrong, I don't have any exact answers.
Explanation:
Gregor Mendel
Hope this helped !