Chemistry Final Exam Sem. 1 P(2) Dec. 2024

Front

What type of bond is formed between Lithium and Fluorine?

Back

Ionic bond: A bond formed by the transfer of electrons from one atom to another, resulting in the formation of charged ions.

Front

What is the relative molecular mass of a compound?

Back

The sum of the atomic masses of all the atoms in a molecule.

Front

What ion is formed by a Lithium atom?

Back

Li⁺: Lithium loses one electron to form a positively charged ion.

Front

What color represents metals on the periodic table?

Back

Blue: Metals are typically represented in blue on the periodic table.

Front

How many atoms are in the formula Ca(NO₃)₂?

Back

9: The formula contains 1 Calcium atom, 2 Nitrogen atoms, and 6 Oxygen atoms (1 + 2 + 6 = 9).

Front

Define ionic bond.

Back

A type of chemical bond that involves the electrostatic attraction between oppositely charged ions.

Front

What is atomic mass?

Back

The weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

Explain the significance of the periodic table in chemistry.

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is the difference between atomic number and atomic mass?

Back

Atomic number is the number of protons in an atom's nucleus, while atomic mass is the total number of protons and neutrons.

Front

What is a covalent bond?

Back

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