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Scientific Method, Atoms & Periodic Table Review Flashcards | StudBud
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Scientific Method, Atoms & Periodic Table Review
Scientific Method, Atoms & Periodic Table Review
20 terms
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StudBud Administration
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142 plays
Brief review of Atoms and the Periodic Table
Flashcards
20 cards
F
Practice quiz
P
Host live
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Questions
20
Answers
1
A scientist is testing if breakfast affects students grades. The dependent variable is:
grades
Breakfast
None
Students
2
How many electrons does Argon (Ar) have?
40
18
39.9
22
3
Elements on the periodic table are arranged by:
Metal, Metalloid, Nonment
Atomic Mass
Atomic Weight
Atomic Number
4
Electrons have a ____ charge.
Negative
Neutral
Positive
5
How many valence electrons does Sodium (Na) have?
11
1
3
5
6
The last step in the scientific method is to:
communicate findings
analyze results
ask a question
draw conclusions
7
Is Arsenic (As) in the same period as Phosphorus (P) or Selenium (Se)?
Same as P
None of the above
Same as Se
8
Elements in the same group have the same number of ___________?
Valence electrons
Protons
Electrons
Neutrons
9
An explanation that is backed up by lots of evidence is called a:
observation
hypothesis
theory
experiment
10
Neutrons have a ___ charge
Neutral
Negative
Positive
11
Protons have a _____ charge
positive
negative
neutral
12
A scientist is testing if breakfast affects students grades. The controls should be:
no controls needed
same test and age of students
grades
Breakfast
13
Elements in group 2, have ____ valence electrons
4
1
2
3
14
What period does Neon belong to?
2
4
3
1
15
What is the outer most energy level for Magnesium (Mg)?
4
5
3
2
16
What group does Potassium belong to?
Rare Earth Metals
1: Akali Metals
16: Halogens
2: Akaline Earth Metals
17
A scientist is testing if breakfast affects students grades. The independent variable is:
The test
Students
Breakfast
None
18
How many protons does Silver (Ag) have?
107
47
64
46
19
How many valence electrons does Chlorine (Cl) have?
5
7
6
4
20
What do scientists do to make sure their results are accurate?
analyze results
communicate results
they don't care about accuracy
repeat the experiment
