Chemistry: Second Quarter Final Exam

Front

Convert 354 grams to kilograms.

Back

0.354 kg

Front

Which of the following elements is a halogen? F, Hg, Mn, Nd

Back

F

Front

List the atomic orbitals in the correct order they are filled according to the Aufbau principle.

Back

1s 2s 2p 3s 3p 4s 3d 4p 5s

Front

What is the atomic mass of Fluorine (F)?

Back

19

Front

How many valence electrons does Aluminum have?

Back

3 Valence electrons

Front

Define atomic mass.

Back

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

Front

What is the Aufbau principle?

Back

The principle that electrons occupy the lowest energy orbitals first.

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that determine its chemical properties.

Front

What is a halogen?

Back

A group of elements in Group 17 of the periodic table, known for their reactivity.

Front

Explain the significance of the periodic table.

Back

It organizes elements based on their atomic number, electron configuration, and recurring chemical properties.