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Periodic Table of the Elements-Dr. Worthington Flashcards | StudBud
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Periodic Table of the Elements-Dr. Worthington
Periodic Table of the Elements-Dr. Worthington
20 terms
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How much do you know about elements, trends, atoms and other sciency things.
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
How many periods are there in the periodic table?
9
11
7
4
2
You can calculate the number of neutrons in an atom by...
Multiplying the number of protons by the number of electrons
Subtracting the mass of the electrons from the atomic mass
Adding the number of protons to the number of electrons
Subtracting the number of protons from the atomic mass
3
The atomic number is
The number of protons
The order the atom was discovered
The number of electrons
The number of neutrons
4
Who developed the periodic table that we use today?
Sir Isaac Newton
Vladimir Putin
Joseph Stalin
Dimitri Mendeleev
5
The trend in proton # is
Increase right to left, top to bottom
Increase left to right, bottom to top
Increase right to left, bottom to top
Increase left to right, top to bottom
6
What does the number in the upper left corner represent?
The order in which it was discovered
The number of neutrons
The number of protons
The number of atoms
7
Electronegativity is...
The inability of atoms to attract bonded pairs of electrons
The ability of an atom to attract bonded pairs of electrons
The process of getting rid of electrons
How much of a negative charge an atom has
8
Sodium is
a halogen
a non-metal
a transition metal
an alkali metal
9
Which has the larger number of Protons?
Ta Tantalum Atomic #73
C Carbon Atomic # 6
U Uranium Atomic # 92
W Tungsten Atomic # 74
10
Uranium is...
a noble gas
a transition metal
a non-metal
an alkali metal
11
An atomic Mass Unit (AMU) is the mass of..
a proton
a neutron
an atom
an electron
12
Chlorine is
an alkali metal
a non-metal
a transition metal
a halogen
13
The group number indicates...
How many electrons are in the outermost orbital
How big the nucleus is
Whether the element is metallic or not
How many neutrons are in the nucleus.
14
What is the only metal that is liquid at room temperature?
Sodium
Mercury
Magnesium
Iron
15
The trend in reactivity is...
Increase left to right, top to bottom
Increase right to left, bottom to top
Increase right to left, top to bottom
Increase left to right, bottom to top
16
The number of protons
equals the number of atoms
equals the number of neutrons
equals the atomic mass
equals the number of electrons
17
Neon is
an alkali metal
a non-metal
A noble gas
a transition metal
18
Why did it take so long for the Noble Gases to be discovered?
They did not exist before Ramseys experiments in 1894
They were so unreactive that they could not be identified
Nobody cared about them
They were so reactive that no one could see that they exist
19
Metalloids have both metal and non metal characteristics
F
T
20
Helium is represented by what 2 letter symbol?
Hm
Hl
He
Hu
