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Q:

In modern periodic table while going from top to bottom in a group ______.

 

A) size of an atom increases B) size of an atom decreases
C) ionisation energy of an atom increases D)  size and ionisation energy of an atom increases

Answer:   D)  size and ionisation energy of an atom increases



Explanation:
Subject: Chemistry
Exam Prep: Bank Exams
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The Chemical formula of Ammonium chloride is ___________.

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Which of the following elements has the lowest melting point?

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Answer & Explanation Answer: B) Hydrogen

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_____ is the fourth state of matter.

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Which of the following is not a Halon gas ?

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