Scientists
Discoveries
Equipment and Lab Safety
Chemistry Class
Element Trivia
100
Who was the number 6.02 x 10^23 named after?
Amedeo Avogadro
100
With the Cathode Ray experiment, J.J. Thompson discovered what?
The electron
100
What piece of lab equipment is used to heat substances over an open flame?
Bunsen burner
100
Are two atoms of the same element always identical?
No
100
Which element is the only element that is liquid at room temperature?
Mercury
200
Who created the wave equation that accurately calculated the energy levels of electrons in atoms
Erwin Schödinger
200
Marie Curie invented this device which was used extensively during WW1
The X-ray
200
What should you always wear to protect your eyes when doing an experiment?
Safety googles
200
In a long form periodic table, the elements in a period are arranged according to the
Increase in atomic number
200
Which element is most abundant in the Earth’s atmosphere?
Nitrogen
300
The apply named “Hawking Radiation” was discovered by this scientist
Stephen Hawking
300
Dimitri Mendeleev is credited for the creation of this arrangement of elements
The Periodic Table
300
Which of these tools is used to measure the exact volume of a liquid?
Graduated cylinder
300
What is 1s, 2s, 2p, 3s, 3p?
Electron Orbital Levels
300
The element with the symbol Na is commonly found is what household item?
Table salt
400
Who developed the theory of relativity?
Albert Einstein
400
With many different models of this Jhon Dalton proposed that everything is made of…
Tiny particles called atoms
400
If you spill a chemical on your skin, what should you do first?
Wash it off immediately with lots of water
400
Atoms with the same atomic number but different mass numbers are called …
Isotopes
400
Which element is known as the “king of elements“ because it forms compounds with nearly all other elements
Carbon
500
Who created the first smallpox vaccine?
Edward Jenner
500
Alexander Fleming discovered that this mold could be used as an antibiotic
Penicillin
500
What is the main purpose of using a fume hood in a laboratory?
To keep us from inhaling chemicals
500
How many neutrons does the isotope of hydrogen called deuterium (
) have?
One
500
Which element has the chemical symbol “K” and is essential for nerve function in the human body?
a) Calcium, b) Potassium, c) Krypton, or d) Phosphorus
d) Potassium