MOCK TEST FOR FINALS DAY 2 - CHEM

Front

What are ionic compounds?

Back

Ionic compounds are substances formed from the electrostatic attraction between positively and negatively charged ions.

Front

Why are ionic compounds usually solid at room temperature?

Back

They have high melting points due to ionic attractions.

Front

Who proposed the Solid Sphere Model of the atom?

Back

John Dalton proposed the Solid Sphere Model of the atom in 1803.

Front

What is the electron configuration of sodium (Na)?

Back

1s² 2s² 2p⁶ 3s¹.

Front

What type of bond is found in O₂?

Back

O₂ has a double bond.

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond where two atoms share one or more pairs of electrons.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is the atomic number of sodium (Na)?

Back

The atomic number of sodium (Na) is 11.

Front

What is the significance of the electron configuration?

Back

Electron configuration determines how an atom interacts with other atoms and its chemical properties.

Front

What are the main types of chemical bonds?

Back

The main types of chemical bonds are ionic bonds, covalent bonds, and metallic bonds.