Periodic Table
Bonding
People
Mixtures
Matter
100
Where are the non-metals located in the Periodic table?
Right side
100
How many major types of bonding are there and what are they?
2, Ionic and Covalent bonding
100
Who arranged the elements according to their atomic mass?
John Newlands
100
What are substances made of identical particles?
Pure Substances
100
What is matter?
Everything that has mass and volume
200
What is the element name of "K"?
Potassium
200
What is NaF?
Sodium Flouride
200
Who found that the properties of metals calcium, barium, and strontium were very similar?
Johann Debereiner
200
What is a mixture where a solid is dissolved in a liquid?
Solution
200
What kind of changes do matter undergo?
Physical and chemical changes
300
From what family is Radium from?
Alkali
300
How many dots does a Boron have in Lewis dot form?
3
300
Who used x-ray experiments to show that the nucleus of each element had an integral positive charge?
Henry Moseley
300
What is the opposite of a natural resource?
Non-living resource
300
Why can't solids be compressed?
Because their particles are already close to each other so they can not be much closer.
400
What are the elements located in the center of the periodic table called?
Metalloids / Semimetals
400
Which type of bonding includes two atoms that share one or more electron pairs between them?
Covalent bonding
400
Who predicted the properties of the unknown elements and was almost close?
Dmitri Mendeleev
400
They can be described as a substancr trapped inside another substance
Colloids
400
Why do gas fill the entire space?
Because its particles move apart to fill their container
500
What is the atomic mass of Hafnium?
178
500
What compound is a non conductor of electricity in solid phase?
Ionic compounds
500
Who created blank spaces for undiscovered elements?
Dmitri Mendeleev
500
Are mixtures only combinations of compounds that are in different states of matter?
No. Mixtures can be made that are the same of matter.
500
What is it called when a solid changes directly into a gas?
Sublimation
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