Matter & Properties
Everything that has mass and takes up space
Hint: Starts with the letter M
Triple points
Matter
How many elements are in baking soda?
NaHCO3
4
U is the Chemical Symbol for what element?
uranium
What is a substance made up of 2 or more elements?
Compound
How many elements are on the periodic table?
The number is between 115-120.
118
Electrons are parts of an atom that have what kind of charge
Negative
In a chemical symbol, which letter is always capitalized?
the first
Where are all elements organized?
The Periodic Table of Elements
If there is no number after an element in the compound, how many atoms are there?
Triple points
1
What is the chemical symbol for potassium?
K
The smallest part of an element
Starts with A
Atom
What happens when two elements combine to form a compound?
Answer: A new ___________ is formed.
Substance
H is the chemical symbol for
hydrogen
True or false: a compound is a pure substance
True
The element with a chemical symbol that is represented by Zn.
Zinc
What is a substance made up of only one type of atom?
Element
What is the following compound that is used to clean cuts?
H2 O2
Hydrogen Peroxide
Fe is the atomic symbol for what element?
Fe
What is the most common chemical compound on Earth?
Water H2O
How many elements are in NaHCO3?
4
Air, saltwater, sand, vinegar, tomato soup are all examples of
a mixture
How many atoms are in the following made up compound:
HINT-remember, if there is no subscript, there is still one atom of that element, it just won't say 1.
CH2Mg5OKCl4
14
Elements are organized on the periodic table based on their _________.
How many atoms are in NaHCO3?
6
This scientist is credited with creating the periodic table of Elements
Demitri Mendeleev
The atomic number is the also the number of _______ an atom has
Protons
Is this an element or a compound?
Na14
element-it has 14 molecules of Sodium, not 14 different compounds
What is the atomic symbol for Mercury?
Hg
Is this a compound or an element
H2O
Compound
Name at least 3 places where you can find the periodic table of elements in your science classroom
Front of the room, Canvas, notebook, (Or can also say ask for a paper copy)