Basics of Chemistry

The Eletronic Configuration of Calcium

• 2K , 8L , 8M

• 2K , 8L , 8M , 8N

• 2K , 8L , 8M , 2N

• 2K , 8L , 10 M

If the Mass no. and the Atomic No. of an Atom H are same , then how many Neutrons are there in that atom H.

• 1

• 0

• Depends on the Atom

• 5

What is the charge of Neon

• +2

• -2

• +3

• -3

What would be the Valence Shell for Sodium

• K shell

• L shell

• M shell

• N shell

Select the Elements which will be neither a Cation nor an Anion

• Helium

• Argon

• Neon

• Sodium

Select all the cations from Hydrogen to Neon

• Lithium

• Beryllium

• Boron

• Carbon

• Nitrogen

Write the Electronic Configuration for Nitrogen.

For eg. 2K , 8L , 2M

What is the Duplete Rule ?

• There can be only 2 electrons in the K shell

• There can be only 2 electrons in the M shell

• There should be 8 electrons in the M , N and L shell

• There should be 8 electrons in the K shell

What is the Octet Rule ?

• There can be only 2 electrons in the K shell

• There can be only 2 electrons in the M shell

• There should be 8 electrons in the M , N and L shell

• There should be 8 electrons in the K shell

Name the anions from Carbon to Neon

• Nitrogen

• Oxygen

• Fluorine

• Chlorine