combustion,heat,and energy
what is potential energy?
stored up energy in an object.
what is a proton?
a subatomic particle located in the atomic nuclei with a positive electric charge.
where are valence electrons found?
Valence electrons are found in the outer s and p orbitals.
what is the charge of a cation and a anion?
cation is positive and anion is negative.
how do you write a chemical formula?
you show element symbol and the number of each element.
what happens in an exothermic and endothermic reaction?
exothermic: releases heat
endothermic: the object gains heat
how can you identify the atomic number of an element?
equal to the number of protons.
What are the 3 periodic trends?
Electron Affinity, Ionization energy, and Atomic Radii.
what forms ionic compounds?
cations and anions or metals and non-metals form ionic compounds.
what is a poly atomic ion?
group of atoms covalently bound together (overall group has a charge)
what is the direction of heat flow?
the heat in an object transfers to a cooler object.
what is an isotope?
atoms with the same number of protons but different number neutrons.
what is the difference between metals and metalloids?
metals: type of element that is a good conducter of heat and electric current.
metalloids: an element that tends to have properties that are similar to those of those of metals and non-metals.
what forms a covalent compound?
non-metals and metals
what is the rule for naming ionic compounds?
non-metal and metal
end of the word with "ide"
what is conduction, convection, and radiation?
conduction: the heat transfer of a hot object to a cooler object.
convection: the warm air rises and the cooler air drops.
radiation: transfer of heat or energy in the form of electromagnetic waves.
what is the atomic emission spectrum?
pattern formed when light emitted by an element is separated into the different wavelengths it contains.
what do the dots in the Lewis structure represent?
the dots represent the valence shells in a molecule.
how many electrons are shared in triple bond?
6 electrons are shared in triple bonds
what is the rule for naming covalent compounds?
non-metal with non-metal
all have their subscript amount in their name
how is energy transferred and what is the source within our earth system of geothermal energy?
the source of geothermal energy is earths core and we get it by drilling into the earth.
What is the difference between ground state and excited state?
ground state: the electron is in the lowest possible energy level.
excited state: the electron has gained energy and is in a higher energy level.
what separates a metal from a non-metal?
what is the transfer of electrons shared between a polar bond?
the transfer of share is unevenly
what do you use when naming transition metals?
parranthesis