Periodic table
This group does not react with any other element
What is the Noble gases
Protons and neutrons are found here
What is the nucleus
This pure substance can only be made up of 1 type of atom
What is an element
A mixture that is not consistent throughout
What is heterogeneous
The building block of all matter
What is atoms
This famous chemist is credited for creating the first periodic table
Who is Mendeleev
Takes up most of the "space" of an atom
What is electrons
2 or more different elements chemically combined in a fixed ratio
What is a compound
These 2 substances always have a composition that never varies
What is elements and compounds
2 versions of the same element that have a different number of neutrons. (EX: C-12 & C-14)
What is isotope
There are 7 of these horizontal "rows" on a periodic table
What are periods
Charges of subatomic particles
What is protons -> positive; electrons -> negative and neutrons -> no charge
Compounds can be broken down into smaller elements called
What is elements
Air is an example of this type of mixture
What is Homogeneous
The term that identifies a charged atom
What is ion
The reason groups are also called families on the periodic table.
What is because they share similiar characteristics
Subatomic particle that acts like the glue that holds protons together in the nucleus
What is neutrons
Identify how many of each elements is in this chemical formula... C6H12O6
What is: 6 Carbon; 12 Hydrogen; 6 Oxygen
Taco salad is an example of this type of mixture
What is heterogeneous
The name of groups 1,2,7 & 8 on the periodic table
What is Alkali metals, Alkaline Earth metals, Halogens and Noble Gases
The periodic table has this number of elements
What is 118 (of which 94 occur naturally on Earth)
Atomic number is always the same number as this subatomic particle
What is Protons
The physical combination of 2 or more substances where each part keeps it's same characteristics
What is a mixture
3 different ways we can classify matter
What is #1: based on state of matter (l,s,g); #2: based on physical properties (characteristics that determine a metal, non-metal or metalloid) ; #3: based on the composition of the substance (element/compound/mixture)
Identify 2 examples of homogenous mixtures and 2 examples of heterogenous mixtures
What is Answer will vary