Everything Matters
Anything that takes up space and has mass
What is matter?
Positively charged particles in an atom.
What are protons?
Matter made of only one kind of atom.
What is an element?
A substance that is made up of more than one element (chemically) bonded together. It is a new substance and has a new set of properties.
What is a compound?
Usually dull and poor conductors of electricity and heat. Usually a gas at room temperature.
What are non-metals?
A small particle that makes up most kinds of matter. They are made up of protons, neutrons, and electrons.
What is an atom?
Negatively charged particles in an atom.
What are electrons?
The number of known elements
What is 118?
Two or more substances physically come together, but DO NOT form a new substance. It can be separated. Specifically, it looks the same throughout and you can't identify the different parts.
What is a homogeneous mixture?
Usually solid at room temperature
What are metals?
Two examples that we discussed in class that are NOT examples of matter because they don't take up space or have mass.
What is heat and light?
What are neutrons?
Element arranged in rows (left to right) are called _________.
What are periods?
Two or more substances physically come together, but DO NOT form a new substance. It can be separated. Specifically, there are larger and different parts that you can see.
What is a heterogeneous mixture?
Most of the mass of an atom is located here
What is the nucleus?
Air is an example of __________.
What is matter?
Positively charged center of an atom.
What is the nucleus?
Elements are in columns (up and down) are called _____________.
What are groups or families?
Kool-Aid is an example
What is a homogeneous mixture?
No two elements can have the same number of protons. This number tells you the number of protons.
What is the atomic number?
Matter cannot be created or destroyed, it can only change form.
What is the Law of Conservation of Matter?
Area around the nucleus that is mostly empty space.
What is the electron cloud?
Elements usually fall into one of these three categories.
What are metals, non-metals, semi-metals/metalloids?
The number of molecules in 14CO2
What is 14?
An atom has 83 protons, 83 electrons, and 126 neutrons. It's atomic mass is ___________.
What is 209?