Atoms
Particles that are smaller than an atom
What is a subatomic particle?
Negatively charged subatomic particles that are in the energy shells of the atom
What is an electron?
An element that is typically hard, shiny, solid, and a good conductor of heat and electricity
What is a metal?
A non-metal bonding with a non-metal
What is a Covalent bond?
Two or more different elements chemically bonded together
What is a compound?
A positively charged subatomic particle
What is a proton?
Atoms with the same number of protons but with a positive or negative charge
What is an ion?
The columns on the periodic table that arrange the elements according to their # of valence electrons
What is a group?
A table showing the elements arranged according to their atomic number.
What is a periodic table?
A property that describes if heat or electrical charges pass through the material easily
What is conductivity?
A subatomic particle without charge that contributes to the mass of the atom
What is a neutron?
The number of protons in an atom
What is the atomic number?
An element that shares some properties of metals and some of non-metals
What is a metalloid?
Non-metals in group 18 that are not reactive and don't need to form bonds
What is Noble gases?
Group 17 on the periodic table is also known as
What is the Halogen group?
The electrons in the outermost energy level that take part in a chemical reaction. Also, this outermost shell needs 8 electrons to become stable
What is a valence electron?
Atoms with the same number of protons but with different neutrons
What is an isotope?
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?
When a metal bonds with a non-metal
What is an Ionic bond?
Which element on the periodic table has the symbol of Ne with the atomic number 10
What is Neon?
The average mass of electrons and protons in an atom
What is atomic mass?
Which two subatomic particles make up the nucleus
What are protons and neutrons?
The rows on the periodic table that classify elements by their energy levels
What is a period?
When a metal bonds with another metal
What is a metallic bond?
Sodiums atomic number
What is 11?