Answer:
neutrons
Explanation:
isotopes have the same number of protons nut different number of neutrons. the difference in thr mumber of neutrons give them their uniques properties.
Answer:
As electro-negativity decreases from Florine to downwards in the group and only Florine is above Chlorine, so Florine should react with sodium chloride solution to produce chlorine.
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4 is correct for this one
Well, you would have to divide 150 metres by 18 seconds.
150/18 = 8 1/3 m/s OR 8.333 m/s
