Classification
Periodic Table
Element Words
Noble Gases
Bonding
100
Who was the first person to classify elements?
Dimitri Mendeleev
100
The seven rows are called _______.
Periods
100
Aceptar
Ac-Ce-Pt Actinium + Cerium + Platinum
100
Which group contains the noble gases?
18
100
Which bond occurs between metals and non-metals?
Ionic bond
200
Which property was used to classify the elements?
Atomic mass
200
The 18 vertical columns are called _______.
Groups
200
También
Al-S-O Aluminum + Sulfur + Oxygen
200
How many valence electrons do noble gases have?
8
200
Salt is an ionic bond between what two elements?
Sodium and calcium
300
All isotopes of the same elements have the same ________ ________.
Atomic number
300
All elements in the same ______ have the same number of valence electrons.
Group
300
Mountains in Switzerland
Al-P-S Aluminum + Phosphorus + Sulfur
300
True or False: Noble gases react with other elements
False
300
Which type of bond occurs when two nonmetals bond together?
Covalent bond
400
Who discovered that atomic number is the most fundamental property of an element?
Henry Moseley
400
Elements in groups 3 to 12 are called ________ ________.
Transition metals
400
Morder
Bi-Te Bismuth + Tellurium
400
Which does not belong: Neon, Helium, Gallium, Xenon
Gallium
400
Water is an example of a _______ bond.
Covalent
500
What element was discovered in 1875 filling in a gap in Mendeleev's table?
Gallium
500
Elements in groups 1, 2, and 13-17, are called _________ ________.
Normal elements OR representative elements.
500
Cargar
C-H-Ar-Ge Carbon + Hydrogen + Argon + Germanium
500
Which rule states that atoms tend to combine in such way that they each have 8 electrons on their valence shells?
The octet rule
500
What is an example of a macromolecular structure?
Graphite OR diamond
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