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प्रश्न
What is the name given to group 17 elements? Why are they called so?
उत्तर
Group 17 elements are called halogens. The name halogens are from Greek halo (sea salt) and gens (producing, forming) and thus means 'sea salt former'.
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संबंधित प्रश्न
How does the chemical reactivity of:
halogens vary?
If an element is in Group 17, it is likely to be ______ (metallic/non-metallic) in character, while with one electron in its outermost energy level (shell), then it is likely to be ______ (metallic/non-metallic).
Write the name from the description.
The family of nonmetals having valency one.
Arrange the following:
Elements of group 17, in decreasing order of reactivity
_______ is in liquid form in the halogen family.
Identify the following:
A reaction in which the hydrogen of an alkane is replaced by a halogen.
The number of electrons in the valence shell of a halogen is ______.
An element X belongs to 3rd period and 17th group, state the name of the element.
An element X belongs to the 3rd period and 17th group, state the name of the family to which it belongs.
This question refers to the elements of the periodic table with atomic numbers from 3 to 18. Some of the elements are shown by letters, but the letters are not the usual symbols of the elements.
| 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| A | B | C | D | E | F | G | H |
| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| I | J | K | L | M | N | O | P |
Which of these is a halogen?
