__________ are the basic building block of all matter.
What are atoms?
The number of protons in an atom of an element is its ___________ number.
What is atomic number?
The simpliest element with 1 as its atomic number
hydrogen
A positively charged subatomic particle.
What is a proton?
All of the rows have this in common
What are number of energy levels, shells, or orbits?
This is the chemical symbol for Au
gold
All of the "blue" elements are considered to have what similar characteristic (or property)
What is a metal?
The name of this model.
Periodic Table
When looking at the periodic table, the vertical columns all have similar what?
What is a property?
The sum of protons and neutrons in the nucleus.
What is : atomic mass
Electrons are found here.
What is the electron cloud?
Rows of elements are called this.
What are Periods?
The ability to dissolve into or become a part of another substance (vocab)
What is solubility?
A negatively charged subatomic particle
What is an electron?
What's the matter?
EVERYTHING THAT TAKES UP SPACE
In an atom, which has the least mass?
A: nucleus
B: proton
C: neutron
D: electron
What is D: electron
The pure form of matter (vocab)
What is a substance?
the quantity of matter within a given object (vocab)
What is mass?
the substances formed by a reaction (new vocab word)
2H + O yields H2O
product (H2O)
A group of atoms bonded together
molecule
Protons and neutrons are found here.
What is the nucleus.
The number that tells us the total number of protons plus neutrons at the bottom of each element square on the periodic table.
What is the atomic mass number?
The number of protons in this element.
What is 22?
the amount of space the object takes up
volume
The smallest part of a substance that cannot be broken chemically
down
atom
describing qualities of something by using your senses
What are qualitative observations?
A group of atoms bonded together.
molecule
how compact or concentrated something is (vocab)
Density
one of the distinct forms in which matter can exist - solid, liquid, gas
state of matter
What determines the identity of an element.
What is the number of protons or atomic number?