ATOMS
What is the central core of an atom?
What is the nucleus
What is a chart that categorizes elements based on chemical properties.
What is a compound?
What are 2 or more atoms chemically bonded.
How do elements form interact?
What is through chemical bonds
What are the starting materials in a reaction
What are the subatomic particles and their charges?
What are protons (+), neutrons (none), and electrons (-)
What is the difference between atomic number and atomic mass?
What is atomic number is the number of protons and atomic mass is the total of protons and neutrons
Can a compound be broken down by physical means?
What is no
What are valence electrons
What is a physical change?
What is something that alters the shape, size, or appearance.
Where are electrons found?
What are orbitals around the nucleus
The group numbers of elements tell us what?
What is how many valence electrons are present
What are the 2 types of mixtures?
What are homogenous and heterogenous
When electrons are shared equally between atoms.
What is a polar covalent bond
What are 2 indicators of a chemical change?
Change in color
Change in temperature
Production of light
Production of gas
Formation of a precipitate
What is an element?
What is a substance that is made up of one atom.
What is the atomic number and atomic mass of bromine?
What is 35 and 80
What type of mixture is trail mix?
What is heterogenous
When electrons are completely transferred to another.
What is ionic bonds
What do we call this
A + B ---> AB
What is a synthesis reaction
What is an isotope?
What is an atom that has more neutrons than protons.
How many elements are on the periodic table?
What is 118
What states of matter can mixtures include?
What are solid, liquid, gas
What is an ion, and the 2 types?
What are atoms with charges, cation and anion
What was the reaction in the liver enzyme lab?
What is the breakdown of hydrogen peroxide into H20 and Oxygen gas.