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100
What is the abbreviated way to write an element
What is chemical symbol
100
What is the number of protons ion the nucleus
What is the atomic number
100
What did Bohr picture the atom having
What is a central nucleus with electrons moving around in it well defined paths, or orbits
100
How many electrons can the 1st energy level hold
What is 2
100
What metal can melt in your hand
What is gallium
200
What language do some symbols names come from
What is Latin
200
What is the region that elections move around in
What electron cloud
200
What are energy levels compared to
What is shelves of a refridgerator door
200
What is it called when elements have properties of metals and nonmetals
What is Metalloids
300
What element is used in making light up signs
What is neon
300
When was the first model of an atom created
What is 1913
300
How many times bigger is the electron cloud bigger than the nucleus
What is 100,000 times
300
What smaller particle are protons and neutrons made up of
What is quarks
300
What are the horizontal rows of elements in the periodic table called
What is periods
400
Who created the first model of an atom
What is Niels Bohr
400
How many electrons can the 2nd energy level hold
What is 8
400
How many scientists did it take to find the 6th quark
What is nearly 450
400
What is an isotope
Wisotopes toms of the same element that have different numbers of neutrons
500
What contains the most of the mass in the atom
Whatatoms he nucleus
500
What nationality was the scientist who created the first model of an atom
What is Danish
500
How many electrons can't he 3rd level hold
What is 18
500
How many naturally occurring isotopes does boron have
What is 2
500
What can you compare a carton of eggs to
What is a carbon atom