900191
Description
Quiz by Jawad Karim, updated more than 1 year ago
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Created by Jawad Karim
over 10 years ago
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Question 1
Question
Whats an element?
Answer
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A substance made of one atom type.
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A substance made of several atoms
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A substance that keeps reactions happening in the body
Question 2
Question
Neutrons have a charge of +1
Answer
- True
- False
Question 3
Question
Why is argon unreactive?
Answer
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It is in Group 8
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It has a full outer shell of electrons
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It has the lowest number of outermost shell electrons out of any element in the entire periodic table.
Question 4
Question
Dmitri Mendeleev created the better version of the Periodic Table
Answer
- True
- False
Question 5
Question
Vertical columns in the P. Table are called groups. Rows in the P.Table are called Periods
Answer
- True
- False
Question 6
Question
Pb is the symbol for neon.
Answer
- True
- False
Question 7
Question
When drawing atoms, the __________ shell must always be filled first before moving on to the next one.
Answer
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lowest
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highest
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biggest
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smallest
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furthest from the nucleus
Question 8
Question
An atom always wants a full outermost shell
Answer
- True
- False
Question 9
Question
Balance this equation:
H2SO4 + NaOH ---->Na2SO4 + H2O
Answer
-
H2SO4 + 2 NaOH ---> NaSO4 +2H2O
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2H2SO4 +3 NaOH ---->Na SO4 + 4 H2O
Question 10
Question
Why do equations need to be balanced?
Answer
-
Because atoms can't be created or destroyed in a reaction
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Because #YOLO
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Because they're easier to understand that way and so scientists made that rule compulsory.
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