The Elements
Atomic Structure
Ions
Measurement and Experiments
Potporri
Jeopardy
100
These are defined as one of the "pure" substances in nature... they cannot be broken down into simpler substances.
What are elements?
100
The atomic mass and the atomic number.
What are 23 and 11?
A = 23
Z = 11
100
The name given to an ion with more electrons than protons.
What is an anion?
100
A device used to measure mass in our chemistry class.
What is an electronic balance?
100
Chlorine has a relative atomic mass of 35.4
Which of the following chlorine isotopes is more common? 35Cl or 36Cl
What is 35Cl?
200
The smallest piece of an element that still retains the properties of that element.
What is an atom?
200
The maximum number of electrons found in the first energy level.
What is 2?
200
The number of protons and the number of neutrons.
What are 12 and 13?
p = 12
n = 25 - 12 = 13
200
The length of this line:
What is 2.15 cm?
200
These two isotopes have the same number of this subatomic particle.
What are protons?
300
The chemical symbols of sodium, calcium and potassium.
What are Na, Ca and K?
300
Atoms with the same atomic number but different atomic masses.
What are isotopes?
300
The number of protons and the number of electrons.
What are 8 and 10?
p = 8
e- = 8 + two extra electrons = 10
300
The fourth stage of a mass spectrometer.
What is deflection?
300
The mass of a water molecule.
H2O
What is 18?
H2O = 1 = 1 + 16 = 18
300
The atomic mass and charge of the ion.
What is 2 and 1-?
A = 2
There is one extra electron, so the charge is 1-.
400
The names of the elements used to spell this word:
What are Calcium and Boron?
400
Jeopardy!
Only your team may answer this question, and you get to choose how much you bet.
But be careful, if you get it wrong then you will lose that many points!
400
The number of electrons found at X in the following 1+ cation.
What is 4?
400
The technique of placing an object in water to find its volume.
What is water displacement?
the object displaces, or pushes away, the same amount of water as its volume
400
The four main gases found in the atmosphere.
(not including water vapor)
What are nitrogen, oxygen, argon and carbon dioxide?
N2 78% O2 21% Ar 0.70%
CO2 0.03%
400
The atomic number of a 2- ion with electrons 2, 8, 8.
What is 16?
A = 16
500
The names of the elements used to spell this word:
What are Sodium, Phosphorus, Potassium, Iodine, Nitrogen?
Na P K I N
(Na P K In... Indium)
500
The atomic mass and atomic number of this atom:
What are 5 and 2?
The atomic mass (the number of protons plus the number of neutrons) is 5.
The atomic number is 2. There are two protons in the nucleus. We also know this is an atom, so the number of protons must equal the number of electrons.
500
Jeopardy!
Only your team may answer this question, and you get to choose how much you bet.
But be careful, if you get it wrong then you will lose that many points!
500
The mass of 70.0 ml of water.
What is 70.0 grams?
The density of water is 1.0 g/ml.
500
The diatomic elements.
What are H2 N2 O2 F2 Cl2 Br2 I2?
500
The number of neutrons in the following ion.
What is 9?