Subatomic Particles
* This subatomic particle is negatively charged.
What is an electron?
This is what we call units like liters, meters, and grams.
What are metric units?
* These are the columns of the periodic table.
What are groups?
* This subatomic particle is positively charged.
What is a proton?
* This number is about equal to the number of protons plus neutrons in one atom of an element. It can be found in the top corner of a periodic table square.
What is atomic mass?
* These are the rows of the periodic table.
What are periods?
* This subatomic particle has no charge (is neutral).
What is a neutron?
* This is a unit you might use to measure the diameter of an atom.
What is a picometer?
* This number is equal to the number of protons in one atom of an element. It is shown in the top left corner of a square on the periodic table.
What is an atomic number?
* This is the part of the atom with the most mass.
What is the nucleus?
* This is the unit you might use to measure the mass of an atom.
What is a dalton?
* This one or two-letter abbreviation for an element always has its first letter capitalized.
What is a chemical symbol?
* These two types of particles can be found in the nucleus.
What are protons and neutrons?
This is the type of microscope that can be used to actually see an atom.
What is an STM (Scanning Tunnelling Microscope)?
This is color-coded on the periodic table. Elements in the same one of these share certain properties.
What is a chemical block group?