Atoms
What is the safety symbol of eye protection
What is goggles
Describes the " What" in a Phenomenon
What is a Law
This explains why something happens in nature, based on repeated evidence.
What is a scientific theory?
Particles located in the nucleus of an atom.
What is protons and neutrons?
Elements combine in a finite number of ways to form these, which make up living and nonliving things.
What are compounds?
What do Scientific Laws and Theories have in common
What is constantly changing over time as new evidence is being discovered
This scientist’s atomic theory stated that all matter is made of atoms, which cannot be created or destroyed.
Who is John Dalton?
This property of elements increases as you move from left to right across a period.
What is atomic number (or number of protons)?
When heating a test tube, always point it in this direction.
What is away from yourself and others?
The number of these particles determines the identity of the element.
What are protons?
Elements in the same Group/Family have what?
What is similar characteristics?
This scientist discovered the electron using a cathode ray tube in 1897.
Who is J.J. Thomson?
These gases rarely react because they already have full outer shells.
What are Noble Gases
Together we’re the starting line—one for living things, one for everything.
Who are we?
What is a cell? What is an Atom?
Electrons orbit in regions of space called these in the modern model.
What are orbitals (electron cloud)?
The horizontal rows on the periodic table are called these.
What are periods?