Symbols and Levels
Element Basics
Protons, Neutrons, and Electrons
Labs
100
What is the elemental symbol for Sodium?
Na
100
The whole number over the chemical symbol is called what?
The atomic number.
100
How many protons does the element Krypton contain?
36
100
What is BTB and what is it used to indicate?
Bromothymol Blue. It indicate how acidic or basic a solution is (pH).
200
What is the elemental symbol for lead?
Pb
200
What is the common name for NaCl?
Sodium Chloride or Salt
200
Which element has a higher number of electrons? Sodium or Boron?
Sodium
200
What type of gas did the yeast release?
Carbon Dioxide gas
300
Au is the elemental symbol for: a. Gold b. Aluminum c. Argon
Gold
300
DOUBLE JEOPARDY: The atomic mass is the sum of what two subatomic particles?
The sum of the protons and neutrons.
300
What kind of charge do protons, neutrons, and electrons have?
Protons - positive, electrons - negative, neutrons- neutral
300
Based on your observations from the BTB lab, what colors indicated the solution was an acid or base?
Acid = yellow Base = blue
400
Which element on the periodic table has a complete set of electrons their energy level?
Neon.
400
True or false? Two or more atoms held together by an ionic bond forms a molecule.
False - a covalent bond forms a molecule. An ironic bond is when an atom transfers an electron to another atom.
400
Fill in the blank: Thallium has an element symbol of _____, Mass number of _____, and atomic number of 81.
Symbol: Ti Mass Number: 204 Atomic Number: 81
400
DOUBLE JEOPARDY: Which elements are commonly found in solutions that indicate it is an acid or a base? Give an example of a base.
Solutions with H+ are acids and solutions with OH are bases.
500
How many electrons does a Oxygen have in their inner most energy level and their second energy level? What element will Oxygen need to bond to complete their second energy level?
Innermost energy level has 2 electrons, second energy level has 6. To complete the level, carbon needs to bond with 2 hydrogen atoms.
500
What type of gas is CH4?
Methane gas
500
Find the number of protons, neutrons, and electrons for the element Sg.
Protons: 106 Electrons: 106 Neutrons: 160
500
Name an acidic and basic solution.
Answers will vary.
M
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u