Answer:
3= Lithium (Li) = [He] 2s1
6= Carbon (C) = [He] 2s2 2p2
8=Oxygen (O)= [He] 2s2 2p4
13=Aluminium (Al)= [Ne] 3s2 3p1
U 2 can help me by marking as brainliest.........
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.
Temperature change, colour change, releasing gas, bubbles and change in odor
An alloy maybe could be used as a solid but i really don't think that would be it so i would sayether from an alloy or dirt