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100
The diameter of the nucleus is this
What is 1/100,000
100
Electric and magnetic fields are used for what?
What is to accelerate, focus, then collide fast moving problems?
100
Hydrogen has this many isotopes.
What is 3 isotopes?
100
This Is the way that dimitri mendeleev arranged the periodic table in the late 1800s.
What is in order of increasing atomic masses?
100
Element next to the step-line on the periodic table are called this
What is metalloids
200
Bohr pictured the atom as having a central nucleus with electrons moving around it in well-defined what
What is orbits or paths
200
Only about this much of a percent of the proton collisions yielded evidence of a sixth quark.
What is one billionth of a percent?
200
The atomic mass unit is defined as this the mass of a carbon atom containing this many protons and neutrons.
What is one-twelfth the mass of a carbon atom 6 protons and 6 neutrons?
200
This is the atomic number and chemical symbol for germanium
What is Ge 32
200
Horizontal columns in the periodic table are called this
What is periods
300
the first level of energy has this kind of energy
What is low energy
300
Finding the sixth quark took this many scientists.
What is 450?
300
An element is the adverge mass of a mixture of its isotopes.
What is Average atomic mass
300
This is the atomic number and symbol for gallium
What is Ga 31
300
The element in Group 18 are known as this.
What is Noble gases
400
This is the number of protons in the nucleus.
What is atomic number
400
This is what the arrangement of three quarks make up.
What is Protons and neutrons?
400
This of an atom is the sumof the number of protons and neutrons in the nucleus of an atom.
What is Mass number
400
These are the four things in the boxes of the periodic table.
What is atomic number, atomic mass, chemical symbol, and the name of the element?
400
This is what numbers that groups have.
What is 1-18
500
This is a letter(s) abbreviating a element name.
What is chemical symbol
500
This is what protons and neutrons made of.
What is quarks?
500
Atoms of the same element that have different numbers of neutrons are called this.
What is isotopes
500
A table of the elements arranged according to repeated change in properties is this term
What is periodic table
500
The vertical columns in the periodic table is called this.
What is groups?
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