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Question
State modern periodic law.
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Solution
It states that "The physical and chemical properties of the elements are a periodic function of their atomic numbers." According to this law, if we arrange the elements based on their increasing atomic numbers, we find that the elements with similar physical and chemical behaviour will be grouped together after a certain interval of elements.
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RELATED QUESTIONS
The position of three elements A, B and C in the Periodic Table are shown below –
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Group 16
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Group 17
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A
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B
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C
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(a) State whether A is a metal or non-metal.
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| a 3 |
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c 5 |
d 6 |
e 7 |
f 8 |
g 9 |
h 10 |
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| i 11 |
j 12 |
k 13 |
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m 15 |
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o 17 |
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