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प्रश्न
Write the name and symbol of the element from the description.
The most reactive nonmetal.
Highest reactive nonmetal.
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उत्तर
Fluorine (F)
संबंधित प्रश्न
What is the common name of this group or family?
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.
The halogen which is liquid at room temperature is ..................
Which of the following properties do not match with elements of the halogen family?
What is the name given to group 17 elements? Why are they called so?
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.
Cl : halogen group : : Ar : _______
Iodine : solid : : bromine : _______
Write the name.
A halogen from period 4.
All the elements in the halogen family are gases.
Identify the following:
A reaction in which the hydrogen of an alkane is replaced by a halogen.
An element X belongs to 3rd period and 17th group, state the no. of valence electrons in it.
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?
