gloryanna12
gloryanna12
22-01-2018
Mathematics
contestada
i need help with question one & two
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prosborough198p2ub41
prosborough198p2ub41
23-01-2018
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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