Download When something reacts, it ______ ______ with other elements

NAME:
DATE
PAGE
ACTIVITY/TITLE
Act #16_________________________
Background Information:
What is an atom?
A pure sample of element contains what?
What is Iron made of?
When something reacts, it _____________ ____________
with other elements.
Challenge:
_________________________________
_________________________________?
Activity #16 Do not answer in complete sentences
Discovering Elements
1.) Who started the idea that everything is made of elements?
2.) Today, substances that cannot be broken down into simpler substances are known as?
3.) What were some of the earliest known elements?
Summary:
4.) In what way where the ancient Greek philosophers right about the elements?
5.) In what way were the ancient Greek philosophers wrong?
Mendeleev and the Periodic Table of Elements.
1.) What did Mendeleev’s ideas help create?
2.) How did Mendeleev arrange the elements?
3.) What is the modern version of the table Mendeleev created called?
Summary:
4.) What did you do in activity #15 that was similar to what Mendeleev did?
The Modern Periodic Table.
1.) How many elements can be found on todays Periodic Table? _____________
2.) ____________ on earth is made of these _________ on the periodic table?
3.) How is each element represented?
4.) C represents __________ Ca represents __________Cu represents ____________
5.) In addition to the symbol, what does each element show?
Atomic ___________ & Atomic ___________
6.) Complete the following box
(hint: what is the atomic number
and atomic mass for Magnesium
and where does each appear
in the box?)
________
______
Magnesium
________
7.) At room temperature, most elements are what? __________________
_____
________________
8.) There are 11 elements that are not solids at room temperature and they appear as
9.) These 11 elements appear where in the periodic table?
10.) The reactivity of an element describes how likely it is to react, or what?
11.) A highly reactive element is likely to do what?
12.) What are the least reactive elements and where on the periodic table are they located?
Summary:
____
14.) What family does Magnesium belong to? ____________
15.) Is Magnesium a solid, liquid or gas? ___________
13.) Using the period table, what is magnesium’s chemical symbol?
Forming Compounds.
1.) _______ contain only one type of ________ while other substances contain two
or more types of ______ held together by _______________.
2.) What are compounds?
3.) Water contains what two elements chemically reacted or bonded together?
4.) What are molecules?
Summary:
5.) Draw a molecule of water, and label the elements and the molecule
Chemical Names and Formula.
1.) What is the chemical name for table salt?
2.) This name tells your table salt contains
__________________
_______
and
_________
3.) In general, what is a chemical formula shorthand for?
4.) What is the chemical formula for sodium chloride?
_________
5.) What is the chemical formula for water?
6.) What is each water molecule made of?
_________
7.) With H20, there is a “2” written to the right and below the “H.” This shows that there is
how many hydrogens are in a H2O molecule
Summary:
“Baking Soda”
= NaHCO3:
8.) NaHCO3 a element, atom or compound?
_____________
9.) What elements (atoms) are in baking soda and how many of each are there?
Element (atoms)
Number of atoms?
Analysis Questions:
Complete the following table
Substance Chemical
Formula
Water
Hydrogen Peroxide
H2 0
H202
Carbon Dioxide
Atoms that
make it up
2 Hydrogen, 1 oxygen
1 Carbons, 2 Oxygens
Table Sugar
C12H22O11
Alanine
C3H7O2N