Nucleus

 Nucleus is the central part of atom consists with proton and neutron.

How polarity creates

 Polarity is a characteristic of any object to form pole. In a covalent bond due to difference of electronegativityof different atom electron cloud tends to more closer to more electronegative atom. Hence, it became partially negative charged and another atom turned into positively charged.

 Covalent Bond is a bond formed by electron sharing.

Covalent Bond

Deley gratification

 Deley gratification is a positive trait of your childreen that can make your child as a successfull people in future.

Properties of periodic table

 Periodic table is a table of rearrangement of chemical elements with the basis of these properties. 

In a periodic table elements are rearranged with their properties.

Periodic table consists with period and coloumn.

The horrizontal line is period and the verticle line is coloumn.

Left to right in a period atomic number increases as same as top to bottom in a group atomic number increases.

Left to right in a period atomic size decreases on the other hand top to bottom in a group atomic size increases.

Innert gas are placed in group zero.

In a period table  there also exist diagonal relationship.

The electronegativity increases by top to bottom in a group and decreases left to right in a period.

Ionization energy also &ecreases top to bottom in a group and increases  left to right in a period.

Flying Fish

 It is fine over ocean that a specific kind of ocean fish is flying like bird.

Ionic properties of covalent bond

 Sometimes covalent compound may show ionic properties

Ionic properties of covalent bond