ATOMS (1)
Atoms (2)
Periodic table (1)
Perodic Table (2)
Periodic Table (3)
100
Particles that are smaller than an atom
What is subatomic particles?
100
All of the area inside an atom surrounding the nucleus where electrons are found.
What is an electron cloud?
100
The dense, positively charged region in the center of an atom made up of protons and neutrons.
What is a nucleus?
100
An element that is usually a gas or a brittle solid, not malleable or ductile, and a poor conductor of heat and electricity
What is a non-metal?
100
A table showing the elements arranged according to their atomic number.
What is a periodic table?
200
A positively charged subatomic particle
What is a proton?
200
Atoms with the same number of protons but with a positive charge
What is an ion?
200
A form of charge either negative, positive, or neutral that is found on subatomic particles
What is electrical charge?
200
The rows in a periodic table that classify elements by their energy levels.
What is a period?
200
Non-metals in group 18 that are not reactive.
What is Noble gases?
300
A subatomic particle without charge that contributes to the mass of the atom.
What is a neutron?
300
The number of protons in an atom
What is atomic number?
300
An element that is typically a hard, shiny, solid and is a good conductor of heat and electricity
What is a metal?
300
The ability of a material to be rolled, or hammered into thin sheets
What is malleability?
300
A symbol which represents each element on the periodic table
What is Chemical Symbol?
400
The electrons in the outermost energy level that take part in a chemical reaction.
What is valence electron?
400
Atoms with the same number of protons but with different neutrons
What is an isotope?
400
The columns on a periodic table that arrange the elements according to their valence electron
What is a group
400
The way that the surface of a mineral reflects light
What is luster?
400
Pure substances that cannot be broken down into simpler substances by chemical or physical means.
What is an element?
500
The average mass of electrons and protons in an atom
What is atomic mass?
500
The sum of positive and negative charges
What is net charge?
500
An element that shares some properties of metals and some of non-metals
What is a metalloid?
500
A property that describes if heat or electrical charges pass through material easily
What is conductivity?
500
The architect of the periodic table
Who is Dmitri Mendeleev?
M
e
n
u