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Periodic Table of Elements Flashcards | StudBud
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Periodic Table of Elements
Periodic Table of Elements
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The table of wonders
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1
Elements in the periodic table are arranged according to their___
Atomic mass
Atomic number
electron affinity
Electronegativity
2
Going down the period, the size of elements
stay the same
decrease
increase
3
What is the definition of electronegativity?
The tendency of an atom to repel electrons
The tendency of an atom to donate electrons
The tendency of an atom to attract electrons
The tendency of an atom to free electrons
4
What type of element does Li, Na and K known as?
Gas
Alkali metals
Noble gas
Alkaline earth metals
5
Fill in the blank: Periods are ___ horizontal rows of elements in the periodic table
9
18
13
7
6
How many elements are currently in the periodic table?
118
98
128
108
7
Which group is know as the halogens?
13
15
18
17
8
Elements are in the same period because they have
the same number of valence electrons
the same atomic number
the same properties
the same mass
9
Groups are ____ vertical columns of elements in the periodic table
18
8
12
15
10
What type of an element is oxygen?
Gas
Metal
Alkaline metal
Alkaline earth metal
11
In which period is the element Na, Mg and Al belong to?
5
3
4
2
12
Which of these elements have the highest atomic number?
Carbon
Nitrogen
Oxygen
Boron
13
Who is responsible for the modern structure of the table of elements?
John Newlands
Dmitri Mendelev
William Golding
Antoine Lavoisier
