Explanation:
9/4 Be +2 (the 9 and 4 are stacked next to Be). Atomic #: 4
Mass #: 9, # protons: 4, # neutrons: 5, #electrons: 2.
31/15 P (31 is stacked over 15 next to the P). Atomic #: 15,
Mass #: 31, # protons: 15, # neutrons: 16, # electrons: 15.
Thw answer is PHj78 JJ CP30 R2D2
Answer:
semiconducting,tellurium
Explanation:
just completed the assignment
It’s A dalton he is the one who figured out matter
Answer: Neutrons vary from each other in their element
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