ICSE /Class 9
Chemistry MCQ Based On The modern periodic table groups and periods
Our free online Chemistry test quiz for Class 9, ICSE will assist you to improve your Chemistry skills on every concept in a fun interactive way.
ICSE Class 9 Chemistry The modern periodic table groups and periods
Only 11 are gases.
Hydrogen has 1 electron in its valence shell
The current periodic table is based on the number of atoms
The elements uranium and plutonium which are used in nuclear reactors and nuclear bombs
Elements in the modern periodic table are arranged in periods and groups.
When it comes to the position of Hydrogen in the periodic table as it can be placed either in group I or 17 group of the first period.
Mendeleev claimed the famous periodic law that “Element properties are a periodic function of their atomic weight.”
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