Chemistry
Grade-7
Easy
Question
____ number of elements are present in the noble family.
- 5
- 6
- 7
- 4
Hint:
6 number of elements are present in the noble family.
The correct answer is: 6
- Chlorine is more reactive than bromine and iodine. Since chlorine has more electrons, it repels reacting electrons with a greater force than fluorine, making it less reactive. It has less tendency to accept electrons than fluorine.
- Chlorine is therefore less reactive than fluorine.
Related Questions to study
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-7
Chemistry
Which noble gas has 18 protons?
Which noble gas has 18 protons?
ChemistryGrade-7
Chemistry
___________are elements that receive or gain electrons to produce negative ions.
___________are elements that receive or gain electrons to produce negative ions.
ChemistryGrade-7
Chemistry
Non-metals are present on which side of the periodic table?
Non-metals are present on which side of the periodic table?
ChemistryGrade-7
Chemistry
Noble gases are mostly found ____________.
Noble gases are mostly found ____________.
ChemistryGrade-7
Chemistry
Balloons are filled with a noble gas called _______________ that lets them float in the air.
Balloons are filled with a noble gas called _______________ that lets them float in the air.
ChemistryGrade-7
Chemistry
Gases that exhibit stability and low reaction rates are called ______________.
Gases that exhibit stability and low reaction rates are called ______________.
ChemistryGrade-7
Chemistry
Which of these groupings of elements could have the characteristic of brittle?
Which of these groupings of elements could have the characteristic of brittle?
ChemistryGrade-7
Chemistry
The element which has the property of being a good conductor of electricity and a bad conductor of heat is
The element which has the property of being a good conductor of electricity and a bad conductor of heat is
ChemistryGrade-7
Chemistry
Noble gases are inert because
Noble gases are inert because
ChemistryGrade-7
Chemistry
_______ acts as a lubricant in making pencils.
_______ acts as a lubricant in making pencils.
ChemistryGrade-7
Chemistry
Which of the following is a solid inert element?
Which of the following is a solid inert element?
ChemistryGrade-7
Chemistry
Which of these is not the property of noble gases?
Which of these is not the property of noble gases?
ChemistryGrade-7
Chemistry
_________ is used in dressing wounds.
_________ is used in dressing wounds.
ChemistryGrade-7
Chemistry
Iodine test is used to check the presence of _________.
Iodine test is used to check the presence of _________.
ChemistryGrade-7