The Atom
The Periodic Table
Drawing Electron Models & Finding Valence Electrons
Calculating Neutrons
(Atomic Mass- Atomic#)
Classifying
Matter (compound, element, or mixture)
100
All matter is composed of tiny particles called __________
Atoms
100
Mendeleev’s periodic table was organized by increasing ___________ ___________.
Atomic Mass
100
Draw the electron diagram of Oxygen.
Two circles: 8 electrons (2 in the inner, 6 in the outer).
100
How many neutrons does oxygen have? (hint: round the atomic mass first)
8
100
What is salt?
Compound
200
What particle in an atom has a negative charge?
Electrons
200
The Periodic Table today is arranged by _________ _______
Atomic Number
200
Draw an electron diagram of Sulfur.
Three circles: (2 on the inner, 8 on the middle, 4 on the outer shell).
200
How many neutrons does Lithium have?
4
200
What is gold?
element
300
Name the particle in an atom has no charge? Name the particle in an atom that has a positive charge?
Neutron, Proton
300
What information does the Atomic number tell you?
# of Protons and electrons
300
How many valence electrons does carbon have?
4
300
How many neutrons does Titanium have?
26
300
What is lemonade with pulp?
mixture (heterogeneous)
400
What is the middle part of the atom called where you find protons and neutrons?
Nucleus
400
What is the difference between a group and a period?
Groups are vertical columns and periods are horizontal rows.
400
How many valence electrons does Potassium have?
1
400
How many neutrons does argon have?
22
400
What is chalk (CaCO3)
Compound
500
What is the space where you find electrons?
Electron Cloud
500
What is the name of the element found in Group 17, Period 3? Also, what is its atomic number, chemical symbol, and average atomic mass?
Chlorine, 17 (atomic #), Cl (symbol), and 35.45 atomic mass units
500
How many valence electrons does Neon have?
8
500
How many neutrons does tungsten have?
110
500
What type of mixture is pop?
Homogeneous
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