1st Semester IPC Test

Front

What is atomic mass?

Back

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

Front

What is the atomic mass of silver?

Back

108 amu.

Front

What safety equipment should be used immediately after an acid splash on the face?

Back

Safety shower.

Front

What is the significance of protons in an atom?

Back

Protons determine the atomic number and identity of an element.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is the relationship between protons and neutrons in an atom?

Back

Protons and neutrons together make up the atomic mass of an atom, with neutrons providing stability.

Front

What is an isotope?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

How many neutrons are in Potassium-39?

Back

20 neutrons.

Front

What is the formula to calculate the number of neutrons in an atom?

Back

Number of Neutrons = Atomic Mass - Atomic Number.

Front

What is the atomic mass of Fluorine-18?

Back

18 amu.