Classification
What is an element?
Positive charged particles
What is a proton?
The atomic number is equal to the
What is the number of protons / electrons?
How many different elements are in the compound CO2?
What is two?
The state of matter where the atoms are the most tightly packed together and only vibrate in place.. definite shape and volume
What is a solid?
Two or more different atoms chemically combined
What is a compound?
What are protons and neutrons?
The atomic mass of an element is equal to the
What is the number of protons and neutrons in the nucleus?
How many total atoms are in the compound CH4?
What is 5?
The state of matter that has the ability to FLOW, definite volume but takes the shape of its container
What is a liquid?
A mixture that can be visibly distinguished.. does not look the same throughout
What is a heterogeneous mixture?
Have virtually no mass and orbit outside of the nucleus
What is an electron?
Horizontal rows on the periodic table are called
What are periods?
The left side of a chemical equation is called the ___, the right side is called the ___
What are reactants and products?
The state of matter with the most thermal energy, atoms and molecules are moving the fastest and the furthest apart, no definite volume or shape
What is a gas?
A mixture that is evenly mixed.. looks like one substance.. can not visibly distinguish the individual parts
What is a homogeneous mixture?
The electrons in the outermost shell are called
What are valence electrons?
Vertical columns on the periodic table are called
What are groups / families?
How many atoms of oxygen are in the compound Mg(OH)2?
What is two?
What is it called when a solid turns into a liquid with increased temperature?
What is melting?
The air in our atmosphere is an example of a...
What is a homogeneous mixture?
Responsible for reactivity.. can be shared or traded amongst atoms to form bonds
What are electrons?
The maximum number of valence electrons an element can have
What is 8?
How many total atoms are in the compound Fe2(CO3)3?
What is 14?
What is it called when a liquid changes into a gas with increased temperature?
What is boiling / evaporation?