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प्रश्न
A part of modern periodic table is given below. On its basis, answer the following questions:
| Group No. → | 1 | 2 | 13 | 14 | 15 | 16 | 17 | 18 |
| Period ↓ | ||||||||
| 2 | A | B | ||||||
| 3 | E | D | F | C |
Which of the element is a Metalloid?
उत्तर
Element D shows the properties of both metals and non-metals. Hence, it is a metalloid.
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संबंधित प्रश्न
Compare and contrast the arrangement of elements in Mendeleev’s periodic Table and the Modern Periodic Table.
What happens to the number of valence electrons in the atoms of elements as we go down in a group of the periodic table?
(b) What is the number of elements is 3rd period, the modern periodic table?
Name the scientist who stated the modern periodic law.
Name an element of group 18 which can form compounds.
Name the cation and the anion in the salt – calcium sulphate
State what is meant by the term chemical formula.
Give the chemical formula of calcium phosphate
The d-block elements are called as _______ elements.
Three elements A, B and C have 3, 4 and 2 electrons respectively in their outermost shell. Give the group number to which they belong in the Modern Periodic Table. Also, give their valencies.
