Questions

Q:

Atomic mass of first 30 elements?

Answer

Here I give you the first 30 Atomic elements names and their Atomic masses.


 


Atomic number      Element        Atomic mass
                             


        1                 Hydrogen           1


        2                  Helium              4


        3                 Lithium              6.94


        4                Beryllium            9.01


        5                  Boron               10.81


        6                Carbon               12.01


        7                Nitrogen             14.01


        8                Oxygen              15.99


        9                Fluorine              19.00


       10                Neon                 20.18


       11               Sodium               22.99


       12             Magnesium           25.31


       13             Aluminium            26.98


       14               Silicon                28.09


       15             Phosphorus           30.97


       16               Sulphur               32.07


       17               Chlorine              35.45


       18                Argon                 39.95


       19             Potassium              39.10


       20              Calcium                40.08


       21             Scandium              44.96


       22             Titanium               47.87


       23            Vanadium              50.94


       24             Chromium            24. 52


       25            Manganese            54.94


       26                Iron                  55.85


       27              Cobalt                 58.93


       28               Nickel                 58.69


       29              Copper                 63.55


       30                Zinc                   65.41

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Subject: Chemistry Exam Prep: AIEEE , Bank Exams , CAT , GATE
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2 3794
Q:

All atoms of uranium have the same

A) Atomic mass B) Number of electrons
C) Atomic number D) Mass number
 
Answer & Explanation Answer: C) Atomic number

Explanation:

There are many isotopes of uranium and all of them have same atomic number i.e, sum of nmber of neutrons and protons.

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Filed Under: Chemistry
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4 3793
Q:

Goitre is due to the deficiency of

A) Calcium B) Zinc
C) Selenium D) Iodine
 
Answer & Explanation Answer: D) Iodine

Explanation:
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Filed Under: Biology

6 3793
Q:

What is harder to catch the faster you run?

A) Breathe B) Fire
C) Water D) Time
 
Answer & Explanation Answer: A) Breathe

Explanation:

It is very hard to catch breathe when you run fast.

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4 3793
Q:

Who among the following is the creator of the Rock Garden in Chandigarh

A) Le Corbousier B) Pupul Jayakar
C) Nek Chand D) Kamaladevi Chattopadhyay
 
Answer & Explanation Answer: C) Nek Chand

Explanation:
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Filed Under: Famous Personalities

1 3793
Q:

Which dinosaur is sometimes referred to as the thunder lizard?

A) Diplodocus B) Brontosaurus
C) Arm reptile D) Cunningham
 
Answer & Explanation Answer: B) Brontosaurus

Explanation:

Although well known as one of the most iconic dinosaurs, Brontosaurus (the 'thunder lizard') has long been considered misclassified. Since 1903, the scientific community has believed that the genus Brontosaurus was in fact the Apatosaurus.

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Filed Under: Animals and Birds
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5 3793
Q:

Who is the Emancipator of the 'untouchables' and crusader for social Justice?

Answer

B.R. Ambedkar

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1 3792
Q:

What Thomas Davenport invented?

A) Screw propellor B) Electric streetcar
C) Chesterfield D) Sleeping (railway) car
 
Answer & Explanation Answer: A) Screw propellor

Explanation:
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Filed Under: Inventions

1 3791