SCHOLARSHIP TEST FOR VIII TO XII

Nitrogen atom has an atomic number of 7 and oxygen has an atomic number 8. The total number of electrons in a nitrate ion will be
8
16
32
64
The nucleus of helium contains
Four protons
Four neutrons
Two neutrons and two protons
Four protons and two electrons

30
32
34
42
A sodium cation has different number of electrons from

25
26
22
19

NO
Iso-electronic species is
The nitride ion in lithium nitride is composed of
7 protons + 10 electrons
10 protons + 10 electrons
7 protons + 7 protons
10 protons + 7 electrons
The (-particle scattering experiment of Rutherford concluded that
The nucleus is made up of protons and neutrons
The number of electrons is exactly equal to number of protons in atom
The positive charge of the atom is concentrated in a very small space
Electrons occupy discrete energy levels
The average distance of an electron in an atom from its nucleus is of the order of
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SCHOLARSHIP TEST FOR VIII TO XII

Tags:

IIT JEE  AIEEE  AFMC  AIPMT

Discussion

Rahul Kumar

Who to download previous year question paper

1256 days 1 hours 26 minutes ago

Rajat chaudhary

nice test

3074 days 14 hours 38 minutes ago

vishvanath waychal

ssssoooo easyyy

4037 days 17 hours 42 minutes ago

vishvanath waychal

sooooo easy

4037 days 17 hours 44 minutes ago

gomathi

average distance of an electron in an atom from its nucleus is of the order of 10 power -6. how? if u know send me the correct solution to sethuram64@gmail.com

4072 days 10 hours 21 minutes ago

Cheshta Choudhury

Nice questions.

4098 days 9 hours 2 minutes ago

mahi sharma

AVERAGE QUESTION

4105 days 14 hours 56 minutes ago

jamjas. t.a

good

4143 days 15 hours 19 minutes ago

jamjas. t.a

good

4143 days 15 hours 19 minutes ago

jamjas. t.a

good

4143 days 15 hours 19 minutes ago

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