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प्रश्न
Which of the following statements about the Modern periodic table is correct?
पर्याय
18 horizontal rows are known as Periods.
7 vertical columns are known as Periods.
18 vertical columns are known as groups.
7 horizontal rows are known as groups.
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उत्तर
18 vertical columns are known as groups. and 7 horizontal rows are known as groups.
Explanation:
The Modern Periodic Table is systematically organised as follows:
- Groups: There are 18 vertical columns known as groups.
- Periods: There are 7 horizontal rows known as periods.
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संबंधित प्रश्न
Name two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice?
In the Modern Periodic Table, which are the metals among the first ten elements?
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.
(b) State whether C is more reactive or less reactive than A.
(c) Will C be larger or smaller in size than B?
(d) Which type of ion, cation or anion, will be formed by element A?
Compare and contrast the arrangement of elements in Mendeleev’s periodic Table and the Modern Periodic Table.
How many rows and columns are there in the modern periodic table?
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Right or wrong sentence.
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Right or wrong sentence.
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Which of the following elements does not lose an electron easily?
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Answer the following in respect of element \[\ce{_16^32S}\].
Give its formula with hydrogen.
