Define compound
Substance composed of 2 or more different atoms that are bonded
Element, compound or mixture? Helium
Element
Which one is easy to separate? Compound or mixture?
Mixture
Chemical symbol for Magnesium
Mg
Define atom
Smallest particle of an element; Building block of life
Compounds are easy or difficult to separate?
Difficult
Element, compound or mixture?
Element
Name the 2 subatomic particles that contribute to the mass of an atom.
Protons and Neutrons
Negatively charged subatomic particle
Electron
Isotopes of atoms have a different amount of ________.
Neutrons
True or False? Both letters of a chemical symbol are capitalized.
False
The mass of this subatomic particle is nearly zero
Electron
You cannot see the different parts that make up this type of mixture.
Homogeneous
The number of these subatomic particles can change however it will change the mass of the atom.
Neutrons
Element, compound or mixture? Li
Element
Chemical symbol for Iron
Fe
Element, compound or mixture? CO2
Compound
Electron shell #3 can hold how many electrons?
8 electrons
A salad is what type of mixture?
Heterogeneous mixture
Pure substance?
No
Bohr model of Lithium
P=3 E=3 N=4
These subatomic particles live in the rings of an atom.
Electrons
Mud is a ______ mixture.
Homogeneous mixture
Bohr model of Oxygen
P=8 E=8 N=8