The table
Reactions
Compounds and bonds
Negitivity and Positivity
Annex (aka random stuff)
100
Solid in natural state, Higher melting points, Conductivity of electricity and heat. Dense
What is a metal?
100
Two or more substances combine to form one compound
What is a synthesis reaction?
100
A outermost electron of an atom that participates in chemical bonding
Valence Electron
100
A group of bonded atoms
What is molecule?
100
The ability to be pulled into thin wire.
What is ductility?
200
Elements that have no metallic properties
No luster
Most are gasses
Poor conductors
Good insulators
brittle
What is a nonmetal?
200
A substance combines with oxygen and releases thermal energy
What is a combustion reaction?
200
Atoms pool together their valence electrons
What is a metalic bond?
200
An ion that has lost electrons
What is a positive ion?
200
This person listed elements according to atomic number
Who is Mosely?
300
Arranged in rows by boiling point and reactivity.
What is a period?
300
one compound breaks down and forms two or more substances
what is a Decomposition reacation?
300
Which molecule is polar?
CO2 or HCl
HCl
300
An ion that has gained electrons
What is a negative ion?
300
This person created the first list of elements into the periodic table by sorting them by their properties
Who is Dimtvi Mendeleev?
400
Group 1- Hydrogen is the exception
React quickly with other elements
Low density
React violently with water
Can be cut with a knife
Only found in compounds
What is an Alkaline Earth Metal?
400
one element replaces another
What is Single-Replacement?
400
IS this polar or non-polar?
non-polar
400
An atom that is no longer neutral because it has gained or lost electrons
What is an ion?
400
Main elements in the human body?
Calcium, oxygen, carbon, nitrogen, phosphorus
(getting atleast 2 will count for this question)
500
Group 17
An element that can react with a metal and form a kind of salt
Only occur in compounds
Reactive with other elements
What is a halogen?
500
Negative ions switch places
Double-Replacement
500
Two atoms are bonded by a transfer of one valence electron to the other
What is an Ionic Bond
500
Atoms of the same elements that have different numbers of neutrons.
Most atoms have several of these
what is an isotope?
500
Name an element that is stable on it's own.
ANything in group 18
helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og)