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I just need an answer for question 3,4 and 5. thank you so much. ​

I just need an answer for question 3,4 and 5. thank you so much. ​-example-1
User Kyflare
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Number 3,In 1913,Neils Bohr,a student of Rutherford’s developed a new model of the atom.number 5,the chemical elements are arranged in order of increasing atomic number.elements in the same group have similar chemical properties. Hope this helps!
User Sergey Tihon
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