Chemistry
Grade-9
Easy
Question
Which chemical family has reactive diatomic molecules among its members?
- Actinide series
- Lanthanide series
- Halogens
- Alkali metals
Hint:
Halogens are highly reactive.
The correct answer is: Halogens
- Actinides are 5f block elements that has different allotropes but do not form any diatomic molecules.
- Lanthanides are f block elements that are less reactive.
- Halogens are highly reactive has the ability to form diatomic molecules.
- Alkali metals has one electron in their outermost shell which they tend to lose, they don't make diatoms.
Related Questions to study
Chemistry
Elements that form salts by combining with metals are ____.
Elements that form salts by combining with metals are ____.
ChemistryGrade-9
Chemistry
What is the true cause of the increased reactivity of halogens?
What is the true cause of the increased reactivity of halogens?
ChemistryGrade-9
Chemistry
How many elements are in the Noble Gas family are man-made?
How many elements are in the Noble Gas family are man-made?
ChemistryGrade-9
Chemistry
Which among the following list of elemental solids is sublimable?
Camphor, naphthalene shows sublimation.
Which among the following list of elemental solids is sublimable?
ChemistryGrade-9
Camphor, naphthalene shows sublimation.
Chemistry
Which element is found in group 17 and is the most reactive non-metal?
Which element is found in group 17 and is the most reactive non-metal?
ChemistryGrade-9
Chemistry
Which group of elements have full energy levels and are considered stable?
Which group of elements have full energy levels and are considered stable?
ChemistryGrade-9
Chemistry
Group 18 members are also called as:
Group 18 members are also called as:
ChemistryGrade-9
Chemistry
Which noble gas has 18 protons?
Which noble gas has 18 protons?
ChemistryGrade-9
Chemistry
The most predominant gas in the universe is:
The most predominant gas in the universe is:
ChemistryGrade-9
Chemistry
Why do the balloons filled with helium move up to the sky?
Why do the balloons filled with helium move up to the sky?
ChemistryGrade-9
Chemistry
What is a halogen that is solid at room temperature?
What is a halogen that is solid at room temperature?
ChemistryGrade-9
Chemistry
The true statement among the following is:
The true statement among the following is:
ChemistryGrade-9
Chemistry
When Be is converted into Be2+ it shows the configuration of which noble gas?
When Be is converted into Be2+ it shows the configuration of which noble gas?
ChemistryGrade-9
Chemistry
Which of these is not a property of Noble Gases?
Which of these is not a property of Noble Gases?
ChemistryGrade-9
Chemistry
How many electrons do the Halogens all have in their outer shells?
How many electrons do the Halogens all have in their outer shells?
ChemistryGrade-9