Blogs - AEPA Earth Science

AEPA Earth Science (AZ045) Practice Tests & Test Prep by Exam Edge

(4.9) Based on 37 Reviews

AEPA AZ045 Practice Test Features

Everything you need to pass your certification exam!

The more you know about the AEPA Earth Science exam the better prepared you will be! Our practice tests are designed to help you master both the subject matter and the art of test-taking to be sure you are fully prepared for your exam.

Here are a few things to think about:

What is the AEPA Earth Science certification exam?
Who is Responsible for the AEPA exam?
Am I eligibility for the AEPA Earth Science Exam?
What is the best way to ensure your success on the first try?
The benefits of using Exam Edge to pass your AEPA Earth Science exam.

Testimonial Image ExamEdge's online practice test is that they mimicked the actual exam. I walked into the exam feeling confident I knew the material and walked out knowing my time studying with Exam Edge was well worth the effort."

Olivia R., Washington

Select Quantity

Buy one or save big with a practice test bundle for the AEPA Earth Science exam.

# of Practice Tests

Regular Price

Your Savings

Your Price

15 practice tests

~~$449.25~~

Save $300.00

$149.25

Bonus 1: 100 Flash Cards --- Bonus 2: Study Guide Bonus: Flash Cards - Study Guide

10 practice tests

~~$299.50~~

Save $200.00

$99.50

Bonus 1: 100 Flash Cards --- Bonus 2: Study Guide Bonus: Flash Cards - Study Guide

5 practice tests

~~$149.75~~

Save $90.00

$59.75

Bonus : 100 Flash Cards Bonus: Flash Cards

1 practice test

no discount

$29.95

All transactions secured and encrypted
All prices are in US dollars

Get Instant Online Access Now!

AEPA Earth Science Sample Test

1 of 5

Krypton has full outer energy levels. By having this type of energy level, what does this mean?

Correct Answer:

the gas is highly un-reactive

krypton, like other noble gases, has full outer energy levels, which significantly influences its chemical properties. this full outer shell configuration means that krypton has a complete set of electrons in its outermost energy level, adhering to the octet rule (except for helium, which follows the duet rule). this configuration is highly stable and results in a lack of tendency to gain or lose electrons.

as a consequence of having a full valence shell, krypton is characterized by its remarkable chemical inertness. atoms achieve chemical stability when they have full outer shells, and since krypton naturally possesses this, it has little incentive to react with other elements. the energy required to remove an electron from or add an electron to krypton is exceptionally high, further contributing to its non-reactivity.

this lack of reactivity is a common trait among the noble gases, which include helium, neon, argon, xenon, and radon, in addition to krypton. these gases, all possessing full outer energy levels, are also known for their low chemical reactivity. this trait makes them useful in applications where non-reactive environments are crucial, such as in lighting, welding, and in environments that require an inert atmosphere.

the full outer energy levels of these gases mean that they rarely form compounds with other elements. the few compounds that do exist involving noble gases, such as xenon difluoride, require specific conditions to form and are generally exceptions that prove the rule of the noble gases' inertness. thus, a gas like krypton, with its complete outermost electron shell, predominantly exists in its elemental form and does not typically engage in chemical reactions.