questions related to bonding in molecules

Q1. who calculate the charge on electron?
ans=R.A.Milicon

 Q2. who use Bohr model?
ans=He²⁺
 Q3. electron;s velocity is equal to light so what is his mass?
ans=m_e’=m_e/√1-(v\c)²

^{Q4. which equation is related to neutrons exploration?
ans=}₄Be⁹+₂He⁴→₆C¹²+₀n<sup>1

Q5. e\m's sicuation for e,p,n</sup> 
  ans=  n<p<e
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bonding in molecules

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