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Intro to Chemistry Flashcards | StudBud
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Intro to Chemistry
Intro to Chemistry
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A #review on the basics of #chemistry
Flashcards
16 cards
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Practice quiz
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Questions
16
Answers
1
Which element has 14 protons?
Aluminum
Nitrogen
Silicon
Magnesium
2
A cation is...
when the number of neutrons decrease
When the number of electrons decreases
when the number of neutrons increases
When the number of electrons increases
3
The number of valence electrons an atom has is indicated by the...
period number
number of energy levels
atomic number
group number
4
What subatomic particles are located in the nucleus?
protons, neutrons & electrons
protons and electrons
neutrons and electrons
protons and neutrons
5
What element is this diagram?
Neon
Potassium
Argon
Sodium
6
The main difference between metals and non-metals is?
all of the above
their location on the periodic table
their ability to conduct electricity
their state of matter
7
What would be the charge of a chlorine atom?
-2
-1
+1
+2
8
Rutherford discovered what about the atom?
that the electrons orbit the nucleus
the nucleus has a positive charge
That everything is made up of atoms
electrons are found in energy levels
9
The following pattern, (+1, +2, +3, +/-4, -3, -2, -1 ) for ionic charge is...
across a period
down a group
10
Which of the following is quantitative property?
Smell
Colour
Height
Texture
11
Which is NOT a chemical property?
Exothermic
Lustre
Flammable
New odour
12
Which scientist concluded that electrons are found in energy levels?
Rutherford
Thompson
Dalton
Bohr
13
Which group in the periodic table is the most stable?
Alkaline Earth Metals
Noble Gases
Alkali Metals
Halogens
14
The "plum pudding" model by Thomson discovered what part of an atom?
neutrons
positive nucleus
negative electron
empty space
15
As the atomic number increases the atomic mass increases because...
the number of electrons increases
the number of protons and neutrons increases
there are more energy levels
16
What is the relative size of an electron to a proton?
1/4
1/2000
1/2
1/200
