WGU D425 Introduction to Chemistry Milestone 1 Atomic Structures and Chemical Bonding Correctly Answered Quiz (Graded A+)

WGU D425 Introduction to
Chemistry Milestone 1 Atomic
Structures and Chemical Bonding
Correctly Answered Quiz (Graded
A+)
D425

, UNIT 1 — MILESTONE 1: Atomic Structures and
Chemical Bonding Milestone




17 questions were answered correctly.
1 question was answered incorrectly.




1


Butter melting is an example of a(n) change.



chemical



elemental



physical



atomic




RATIONALE

A physical change is a type of change in which the form of
matter is altered but one substance is not transformed into
another. The melting of butter only changes its state from solid
to liquid, but it does not change its chemical composition.
Therefore, it’s a physical change.



CONCEPT
Ma tter and its Properties

, UNIT 1 — MILESTONE 1: Atomic Structures and
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Chemical Bonding Milestone




How many electrons are in a neutral Si atom?



28



7



14



3




RATIONALE

The atomic number of silicon (Si) is 14, and it tells us that a
neutral Si atom contains 14 protons in its nucleus and 14
electrons outside its nucleus.



CONCEPT
Introduction to Subatomic Particles

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3


When an atom absorbs energy, it will likely enter into a(n)
.