The number of electrons, protons and neutrons in a species are equal to 18, 16 and 16 respectively. Assign the proper symbol to the species.
Symbols can be written, whereas symbols are not acceptable. Answer Briefly.
Atomic number is defined in terms of protons and not in terms of electrons. Why?
What type of waves does light constitute?
Who proposed solar model of atom?
Give the range of wavelengths of visible light.
Calculate the number of neutrons in dipositive zinc ion (Zn2+, the mass number being 70).
No. of neutrons= Mass number - Atomic numberAtomic mass of zinc is 70 gAtomic number of Zinc is 30. Thus, number of neutrons will be,No. of neutrons = 70 - 30 = 40
What is the charge on 1 mole of neutron?
Calculate the number of electrons which together weigh one gram.
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One Word AnswersShort Answer TypeOne Word AnswersShort Answer Type
can be written, whereas symbols 
are not acceptable. Answer Briefly.
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