The Atom
Isotopes
The Periodic Table
Periodic Trends
Hodgey Podgey
100
The number of protons for nitrogen.
What is seven?
100
Write boron-10 in isotopic notation.
What is 10/5 B?
100
The elements Aluminum and gallium are in the same _____________ (period/group)
What is group?
100
The element that has the highest electronegativity is ____________ (bromine,fluorine, or chlorine)
What is fluorine?
100
The characteristic of an atom that identifies the element is ______________.
What is atomic number or number of protons.
200
The subatomic particle that is the lightest in terms of mass.
What is an electron?
200
The number of neutrons in chlorine-37.
What is 20?
200
Calcium and Magnesium are in this group.
What is alkaline earth metals?
200
As the atomic number increases in a group, the atomic radius ____________ (increases or decreases)
What is increases?
200
_________________ discovered the electron using the ______________.
What is Thomson and cathode ray?
300
The number of neutrons for bromine.
What is 45?
300
Isotopes of the same element have different numbers of _________, which result in different ______________.
What is neutrons and masses?
300
Two elements that are nonmetals are _______________.
What is carbon, nitrogen, oxygen, fluorine, neon, helium, phosphorus, sulfur, chlorine, bromine, argon, neon, selenium, bromine, krypton, iodine, xenon, astatine, and radon?
300
Put the elements in order according to increasing atomic radii: Rb, Na, K.
What is Na, K, Rb?
300
Mosely ordered the periodic table according to increasing ______________.
What is mass?
400
Mass number equals ____________________.
What is protons plus neutrons.
400
The mass number for phosphorus-32 is _____________.
What is 32?
400
The group of elements that are nonreactive.
What is group 18 or noble gases.
400
Atomic radii decrease from left to right because _____________________.
What is the attraction between the protons and electrons increases because the number of protons and electrons increases?
400
The name of Rutherford's experiment is ________________. From his experiment Rutherford concluded that _________________________.
What is the Gold Foil Experiment? What is the atom is composed mostly of empty space with a tiny positively charged dense nucleus in the middle?
500
In an neutral atom, __________ equals ____________.
What is protons equals electrons?
500
The average atomic mass of an element with 2 isotopes is 31.2 AMU. The isotope that would be in greater abundance would be: isotope-31 or isotope-32
What is isotope-31?
500
Name an element that has similar properties to bromine.
What is fluorine, chlorine, iodine, or astatine?
500
The group from which it is most difficult to remove an electron. Why?
What is group 18? Because the atoms already have 8 valence electrons and are most stable.
500
_____________________ came up with the Atomic Theory. _____________________ are two parts of the Atomic Theory.
What is Dalton?
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