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Question
Name and state the following with reference to the elements of the first three periods of the periodic table.
Non-metallic elements present in Period 3 of Groups 15 and 16.
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Solution
Non-metallic elements present in Period 3 of Groups 15 and 16 - Phosphorus and sulphur
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RELATED QUESTIONS
Given below are some elements of the modern periodic table. Atomic number of the element is given in parentheses.
A(4), B(9), C(14), D(19), E(20)
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.................... .................... |
.................... .................... |
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