What is meant by matter , What is meant by atom , Explain what Dalton discover about atom , Explain what Eutherford discover about atom , Explain the Nucleus inside atom , Where is electrons found , Explain the mass and charge in subatomic particles, What is the charge of Nucleus , What is elemant of this symbol H, O, P, K, Fe, Mg, N, Na, Ca, Cll , What is meant by fertilizers? Example , What is function of N, P, K in the soil , What is atomic number , What is mass number , What is electron configuration of Li 11,Be 4,B 5,C 6,N 7,O 8,F 9,Ne 10, What is meant by isotopes , What is isotopes of hydrogen.

Lesson1 prep1

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