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Origin of the Element

1

First elements formed during the formation of the universe?

Hydrogen

1

What is the most accepted theory in the formation of the universe?

Big Bang

1

Who proposed Big Bang Theory?

George Lemaitre

2

Give atleast two evidence of Big Bang?

Redshift

Presence of Microwave Radiation in the entire Universe

Abundances of Light Element

5

Give the 3 light element and atleast 2 heavy element formed during the formation of the universe.

Light - Hydrogen, Helium, Lithium

Heavy - Beryllium - Iron

Periodic Table of the Element

1

What do you call to the element that has stable or 8 electrons?

Noble Gases

1

What is the element symbol of Copper?

Cu

1

Give atleast one example of element that has 4 electrons

Ti, Zr, Hf, C, Si, Ge, Sn, Pb

2

What are the 2 elements that is liquid?

Hg and Br

5

Give atleast 5 elements that is in Group 1A

H, Li, Na, K, Rb, Cs, Fr

Atomic Structure

1

First Atomic Structure?

Billiard Ball Model

1

Who proposed Planetary Model?

Neils Bohr

1

Who discovered positively charged atom?

Ernest Rutherford

2

Where can you find electron and protons in an atom?

Middle - protons

Around - electrons

5

What is the most present atomic model?

Electron Cloud Model

Chemical Bonding

1

Refers to the transferring of electrons

Ionic

1

Refers to the sharing of electrons

Covalent

1

Ionic happens between metal and non metal while covalent bonding happens between?

2 non metals

2

What will happen if you bond 2 metal element

Will produce sea of electrons

5

Give atleast 1 example of intermolecular forces

Hydogen, Ion Dipope, Dipole Dipole, London Dispersion Forces