Periodic table
Particles that are smaller than an atom
What is subatomic particles?
The dense, positively charged region in the center of an atom made up of protons and neutrons.
What is a nucleus?
Shows how the electrons are distributed in an atom
What is electronic configuration
Group of elements in the periodic table that are both metal or non-metal
What is a metalloid
A negatively charged sub-atomic particle.
What is an electron
A subatomic particle without charge that contributes to the mass of the atom.
What is a neutron?
The electrons in the outer most energy shell are known as
What is a valence electron
Elements in the periodic table are divided in these 3 categories.
What is a metal, non metal and metalloid
Is the same as the atomic number of an element.
What is the proton number and the electron number.
The electrons in the outermost energy level that take part in a chemical reaction.
What is valence electron?
The columns on a periodic table that arrange the elements according to their valence electron
What is a group
Element in the periodic table that only has one electron
What is Hydrogen
Pure substances that cannot be broken down into simpler substances by chemical or physical means.
What is an element?
The mass of electrons and protons in an atom
What is atomic mass?
An element that shares some properties of metals and some of non-metals
What is a metalloid?
A property that describes if heat or electrical charges pass through material easily
What is conductivity?
May be drawn to graphically represent the arranged of electrons in an atom.
What is a shell diagram