Question

multiple choice questions based. on NCERT textbook question number 1 the nucleus of an attam consit (a) protein and neutrans (b) protein and electronc (c) nutrine and electrons

question number 2 the symbol for the attam which attmic number 17 and attmic na =35 is?
a) cl
b) na
c) mg
d) k​
question number 3
The anose Rays where over crookes
a) crookes
b)gold steis
c) Thomson
d) chawick
question number 4
isotanes have same?
a)allamic
b) mass number
c) number of neutrons
d) number of electrons

Answer 1

1. Nucleus of an atom consist of Protons and neutrons (surrounded by electrons)

2.  a) cl - chlorine has atomic number 17 and mass number 35

3. The anode rays were first observed in Crookes tubes

4. Isotopes have same atomic number

Isotones have same number of neutrons

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