Chemistry
Grade-9
Easy
Question
How many valence electrons does Helium Have?
- 1 Valence electron
- 2 Valence electron
- 3 Valence electron
- 4 Valence electron
Hint:
Helium has two electrons.
The correct answer is: 2 Valence electron
Helium has two electrons, its atomic number is 2. The only two electrons it has are its valence electrons. It is placed in group 18 but unlike other group 18 elements it does not have eight valence electrons. It is one of the six naturally occurring noble gases.
Related Questions to study
Chemistry
How many valence electrons does Hydrogen Have?
How many valence electrons does Hydrogen Have?
ChemistryGrade-9
Chemistry
Which family of elements are the most reactive?
Which family of elements are the most reactive?
ChemistryGrade-9
Chemistry
Which family of elements is the least reactive?
Which family of elements is the least reactive?
ChemistryGrade-9
Chemistry
The __________________ of an element is the tendency to release energy.
The __________________ of an element is the tendency to release energy.
ChemistryGrade-9
Chemistry
A ________________________ is an electron located in the outermost shell.
A ________________________ is an electron located in the outermost shell.
ChemistryGrade-9
Chemistry
Elements in the same family have similar _______________.
Elements in the same family have similar _______________.
ChemistryGrade-9
Chemistry
Which group includes the non-metals that can exist in liquid form at normal temperature?
Which group includes the non-metals that can exist in liquid form at normal temperature?
ChemistryGrade-9
Chemistry
Noble Gases are found in ____________.
Noble Gases are found in ____________.
ChemistryGrade-9
Chemistry
Which group of the periodic table does a diatomic elemental gas with a pale yellow colour belong to?
Which group of the periodic table does a diatomic elemental gas with a pale yellow colour belong to?
ChemistryGrade-9
Chemistry
Halogens are in the group number
Halogens are in the group number
ChemistryGrade-9
Chemistry
The true statement among the following is
The true statement among the following is
ChemistryGrade-9
Chemistry
Which group is distinguished by colourless monoatomic gases that lack any taste or smell?
Which group is distinguished by colourless monoatomic gases that lack any taste or smell?
ChemistryGrade-9
Chemistry
A noble gas whose outermost electronic configuration is different from other group members?
A noble gas whose outermost electronic configuration is different from other group members?
ChemistryGrade-9
Chemistry
Which of the following is the most reactive group of non-metals?
Which of the following is the most reactive group of non-metals?
ChemistryGrade-9
Chemistry
They float due to the helium's inert properties.
They float due to the helium's inert properties.
ChemistryGrade-9