Question

if an atom is electrically neutral which among these will be equal to the atomic number

° proton, electron
° proton , neutron
° electron,atomic number
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Answer 1

Answer:

In all electrically-neutral atoms, the number of electrons is the same as the number of protons. Each element, when electrically neutral, has a number of electrons equal to its atomic number

Answer 2

v=0s=6m(at least)

By third equation by motion,

v2=u2+2as0=(18250×18250)+2(−a)(s)0=192.90−12aa=12192.90=16.07

Now applying third equation of motion,

v2=u2+2as⟹0=(100×185)2+2(−16.07)(s)⟹0=771.60−32.14s⟹s=32.14771.60=24.00

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OHK