Ions & Electron Configuration
These subatomic particles are being gained/lost as an atom ionizes
What are (valence) electrons?
This is known as a group of two or more atoms, of different elements, that are chemically bonded together.
What is a compound?
This subatomic particle is said to be so small it "has no mass."
What is an electron?
This particle, found in the nucleus of an atom, is the foundation for which the modern periodic table is organized.
What is a proton?
The electron configuration for this element is: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4
What is selenium (Se)?
Elements like Gold (Au) and compounds like water (H2O) are categorized as this type of matter
What is a Pure Substance?
These types of atoms will have the same atomic number but are determined to have a different mass number.
What are isotopes?
Nonmetal atoms in group 6a will gain this number of valence electrons during ionization.
What is two?
Most atoms will form bonds in order to have this number of valence electrons
What is 8 (or 0)?
This physical property is determined to be the average kinetic energy of all of the particles within a substance.
What is Temperature?
Elements will be considered neutral as long as they have the same number of these two particles.
What are protons and electrons?
Elements down a group will have an increasing number of these types of electrons.
What are shielding (core) electrons?
The valence electrons for an atom of carbon are split between these TWO energy sublevels
What are the (2)s and (2)p sublevels?
This scientific law establishes that within a chemical reaction, matter is never created nor destroyed.
What is The Law of Conservation of Mass (or Matter)?
This value is determined experimentally using a mass spectrometer and is calculated using isotope masses and relative abundance.
What is (average) atomic mass?
This group of elements are considered the most reactive of the nonmetals.
What is group 7a or Halogens?
Atoms of this period 2 element have two unpaired electrons in the p sublevel.
What is oxygen?
These elements are known as the seven "diatomic elements" that exist in nature as a molecule of the same atom bonded together. (You must list at least 4 of them to get credit)
What are Bromine, Iodine, Nitrogen, Chlorine, Hydrogen, Oxygen, and Fluorine?
What is hydrogen?
This element is considered the least reactive of the Alkali metals.
What is Lithium?