If the electronic configuration of elements A and B are 1S2, 2S2 2P6, 3S1 and 1S2, 2S2 2P6, 3S2 3P4 respectively, then the formula of the compound formed by the combination of these elements will be:
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Who first discovered the every eighth element had properties similar to that of the first?
Fill in the blank with the most appropriate option.
An element attains stability when it achieves ________ state.
Which group in the modern periodic table contains elements that are inert gases?
Isotopes of an element have ______.
This refers to the ordering of elements in a sentence
According to Newlands' law of Octaves, how many elements exist in nature?
What is the heat generated (in J) in a heating element of resistance 800 Ω when a current of 0.2 A passes through it for 40 seconds?
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