Atoms
All matter is made up of this
What are Atoms?
Reactions happen when elements do this.
What is exchange electrons (or make a new substance)
Things that are listed in the periodic table by atomic number.
What are elements?
Two or more elements chemically combined.
The state of matter with molecules that are spaced the farthest apart.
What is a gas?
The smallest chemical structure used to represent a chemical.
What is an atom?
This may indicate a chemical reaction.
What is a change in temperature,
appearance, or a different substance?
Family of elements that can be magnetic, ductile, malleable, or conduct electricity
What are metals?
two or more substances physically combined.
A reaction that creates heat is called this.
What is an exothermic reaction?
Two or more atoms chemically bonded.
What is a molecule?
The results from vinegar and baking soda mixing contain these two compounds.
What are water and carbon dioxide?
The two subatomic particles that combine to make the atomic mass of an element.
Strawberry milkshakes, made from combining strawberry syrup with milk, is considered this type of ECM.
This element has only 1 proton.
What is Hydrogen?
A positively charged subatomic particle.
What is a proton?
A reaction results from mixing these two substances.
What is an acid and a base?
A vertical column in the periodic table is called this.
What is a group/ family?
Salt, sodium chloride, or NaCl, is this type of ECM.
What is a compound?
The nucleus contains these subatomic particles.
What are protons and neutrons?
The person credited with creating the Periodic Table.
Who is Demitri Mendeleev ?
Going from a solid to a liquid NOT a a chemical reaction. It is called this.
What is a change in state?
The number of elements that are in the periodic table.
What is 118?
A pure substance with atoms of only one atomic number are this ECM.
What is an element?
The second electron ring can hold this many electrons.
What is 8?