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Chemistry Quiz
Chemistry Quiz
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Elements and Chemistry terms for Midterms
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
What element has the atomic number 12?
C
S
Mg
Ne
2
Which of these is a noble gas?
Na
Be
Ne
Os
3
Lead and Radon are both metals.
False
True
4
Which branch of chemistry deals with carbon?
Mental
Ananalytical
Organic
Physical
5
_____ make up over 70% of the periodic table.
Noble gases
Halogens
Metalloids
Metals
6
Transition Metals are in groups:
1-4
3-14
2-13
3-12
7
Which of these is classified as a pure substance?
Heterogeneous mixture
Homogeneous mixture
Element
Bond
8
When looking at an element's diagram, where is the "atomic mass" located?
Lower right
Upper right
Lower left
Upper left
9
Which of the following is NOT a property of matter?
Ductility
Ducttape
Melting/boiling point
Heat conductivity
10
What is "Deposition"?
solid -> gas
gas -> solid
element -> atom
liquid -> solid
11
Silicon has 13 protons at a charge of +1.
True
False
12
Silicon is a semi conductor
False
True
13
Which element is combined with Chlorine to make a food item?
I
Kr
K
Na
14
Atoms DO NOT maintain chemical identity of elements.
True
False
15
The amount of neutrons is calculated by subtracting _______ from the atomic mass...
Number of atoms
Element Symbol
Positive Charge
Atomic Number
16
Iodine is in Group 17
True
False
17
What substance "cannot be separated by physical means"?
Theoretical
Pure
Matter
Homogeneous mixture
18
What is the atomic number of GERMANIUM.
31
33
34
32
19
The molecules in a solid are closer together than those of a gas.
False
Sometimes
True
20
Extensive properties DO NOT depend on the amount.
False
True
