A. Neutrons
B. Protons
C. Electrons
D. Beta rays
Updated by: Qurrat
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Related Mcqs:
- The most abundant element in the universe is __________.
A. Oxygen
B. Hydrogen
C. Carbon Dioxide
D. Silicon - The most abundant element in the Earth’s crust is __________?
A. Oxygen
B. Hydrogen
C. Carbon Dioxide
D. Silicon - Diamond is a very expensive ornament. It is composed of a single element ___________?
A. Carbon
B. Gold
C. Silver
D. Platinum
E. None of these - The half life of a radioactive element is 8-days. How long it take to reduce it from 10 mg to 5 mg?
A. 4 days
B. 12 days
C. 16 days
D. 8 days
E. None of these - What is the first element in the periodic table?
A. Hydrogen
B. Helium
C. Nitrogen
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A. Nitrogen
B. Hydrogen
C. Nickle
D. OxygenSubmitted by: Arsalan hashmi
- Which of the following is a transition element?
A. Cl
B. Cu
C. S
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- Which element is called earth maker?
A. Oxygen
B. Silicon
C. Carbon
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- The heaviest man made element found so for is__________?
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B. Ununoctium
C. Francium
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- Which element has the third most % in human body?
A. Oxygen 65%
B. Calcium 75%
C. Hydrogen 10%
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5 Comments
ISOTOPES having the same no of protons and electrons and differ in neutron no.
correct the answer.
Isotopes of an element have different number of neutrons
wrong answer
Each isotope is named on the basis of its mass number, which is the total combined number of neutrons and protons in an atom.
Neutrons varies in Isotopes .
Right answer B
Isotope of element having same number of proton and different number of neutron