MEDIUM
Earn 100

What characteristic feature seen in the configuration of chemically inactive species.

Important Questions on Structure of The Atom

MEDIUM
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
Atomic-number of sodium is 11. Electronic distribution of Na+ is:
EASY
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
What are valence shell?
EASY
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
Number of valence electrons in K atom is 
EASY
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
Maximum number of electrons that M-shell can accommodate is:
EASY
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
What are valence electrons?
HARD
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
State 2n2 rule of Bohr and Bury. Draw diagrams indicating the distribution of electrons in an atom of the elements having atomic number 8, 15 and 17. Give the names and symbols of these elements.
EASY
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
The electronic distribution of Mg (atomic number 12) is:
HARD
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
Describe the Bohr-Bury scheme for the distribution of electrons in an atom.
MEDIUM
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
State the maximum number of electrons that can be present in the first, second and third electron orbits of atoms.
HARD
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
How many electrons can be fitted in the third orbit of an atom at the maximum?
MEDIUM
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
Maximum number of electrons that N-shell can accommodate is:
EASY
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
If in an element first shell K is the outermost shell, it will get inert gas configuration completing _____ electrons in outermost shell:
EASY
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
Sodium ion has :
EASY
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
According to Bohr, maximum number of electrons in a shell is given by
HARD
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
The energy of electron in orbits decreases with the increase in the value of n.
EASY
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
Write the electronic configuration of oxygen and magnesium.
EASY
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
Which of the following is the correct electronic configuration of sodium?
EASY
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)

The electronic configuration of an element with atomic number 15 is _____.

A : 2, 8, 5

B : 2, 8, 4

C : 2, 8, 8

Enter your correct answer as A, B or C.

EASY
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)

The electronic configuration of an element with atomic number 14 is 2,8,4.

EASY
Science>Chemistry>Structure of The Atom>Distribution of Electrons in Different Orbits(Shells)
Maximum number of electrons, that K-shell can accommodate is: