ccchristian1
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i need help with an assignment. who can help?
Chemistry
katieb
  • katieb
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ccchristian1
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ccchristian1
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@midhun.madhu1987
ccchristian1
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@midhun.madhu1987 if you can give me the answers for all them i will really appreciate it and give you a medal and ill fan you
Rushwr
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ccchristian1
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i already got the answers thanks doe
Rushwr
  • Rushwr
A) We consider that atomic mass includes the the atomic number which is the no. of protons and the no. of neutrons. (answer : Atomic mass) B) Atoms must have same no. of electrons and protons. As we all know atomic number is the no. of protons. Hence we can say that it also represents the no. of electrons (answer: Electrons and protons ) C) Along a period / row the properties vary right? Simply we can take the 2nd period : The 1st element is Li and the last element in that period is F. Compared to Li , Florine has a very high electronegativity. So the properties will be more alike in the same group/ column. We know that sodium and potassium reacts in the same way in the most cases (answer: column) D) As I told you earlier atomic mass contains atomic number and the no. of neutrons. Here they have given us the atomic number and the mass number. \[ Atomic mass- atomic number = neutrons \] (answer : 12)

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