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solong [7]
3 years ago
7

I need help with question one & two

Mathematics
1 answer:
Zolol [24]3 years ago
6 0
The atomic number above the element is the number of protons inside of it.
That’s number 1 so answer is 169.
Number 2 is H because in the description above it states it is highly reactive
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These are linear equations that can be solved simultaneously;
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Step-by-step explanation:

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