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प्रश्न
Write the name and symbol of the element from the description.
The most reactive nonmetal.
Write the name:
Highest reactive nonmetal.
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उत्तर
Fluorine (F)
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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.
What is the name given to group 17 elements? Why are they called so?
Arrange the following:
Elements of group 17, in decreasing order of reactivity
If an element is in Group 17 [or Group 7A] is it likely to be metallic or non- metallic in character?
______ is in liquid form in the halogen family.
Find the correlation:
Cl : halogen group : : Ar : _______
Find the correlation:
Iodine : solid : : bromine : _______
Write the name.
A halogen from period 4.
The number of electrons in the valence shell of a halogen is ______.
An element X belongs to 3rd period and 17th group, state
- no. of valence electrons in it.
- name of the element.
- name the family to which it belongs.
- write the formula of the compound formed when X reacts with \[\ce{^{27}_{13}Y}\]
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.
An element X belongs to the 3rd period and 17th group, write the formula of the compound formed when X reacts with \[\ce{_13^27Y}\].
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?
Fluorine, chlorine and Bromine are put in one group on the basis of their similar properties.
What is the common name of this group or family?
