science
Grade-9
Easy
Question
How many electrons are there in the outermost shell of argon?
Hint:
The M shell or the least shell of the argon atom has 8 electrons.
The correct answer is: 8
- The atomic number of argon is 18.
- The electrons in the argon atom are distributed in 3 shells (K, L, M)
- The last shell or the M shell of the Argon atom has 8 electrons which makes it a little hard to combine with other elements.
Related Questions to study
science
Where are the valence electrons of an atom present?
Where are the valence electrons of an atom present?
scienceGrade-9
science
How many electrons, protons, and neutrons, respectively, are there in a phosphorous atom?
How many electrons, protons, and neutrons, respectively, are there in a phosphorous atom?
scienceGrade-9
science
To attain stability, chlorine has to gain how many electrons?
To attain stability, chlorine has to gain how many electrons?
scienceGrade-9
science
An element has an electric charge +1. It is for which sub-atomic particle ?
An element has an electric charge +1. It is for which sub-atomic particle ?
scienceGrade-9
science
The maximum number of electrons is given by the formula
The maximum number of electrons is given by the formula
scienceGrade-9
science
If an atom contains the same number of neutrons, then they are called as
If an atom contains the same number of neutrons, then they are called as
scienceGrade-9
science
What is the mass number of an element which has 15 protons and 16 neutrons?
What is the mass number of an element which has 15 protons and 16 neutrons?
scienceGrade-9
science
In an atom the electrons other than the valence electrons are called
In an atom the electrons other than the valence electrons are called
scienceGrade-9
science
An element loses or gains the electron to attain which one of the electronic configurations?
An element loses or gains the electron to attain which one of the electronic configurations?
scienceGrade-9
science
What is the valency of an element which has 13 protons and 14 neutrons?
What is the valency of an element which has 13 protons and 14 neutrons?
scienceGrade-9
science
How many numbers of electrons are there in the valence shell with atomic number 20?
How many numbers of electrons are there in the valence shell with atomic number 20?
scienceGrade-9
science
Which of the following is correct regarding the atom?
Which of the following is correct regarding the atom?
scienceGrade-9
science
If an element has 18 electrons and has a valency of 1, then what is that element?
If an element has 18 electrons and has a valency of 1, then what is that element?
scienceGrade-9
science
An atom with 9 protons and 10 neutrons, will have the valence electrons of
An atom with 9 protons and 10 neutrons, will have the valence electrons of
scienceGrade-9
science
The first atomic model of the atom was discovered by
The first atomic model of the atom was discovered by
scienceGrade-9
