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Periodic Table & Periodic trends Flashcards | StudBud
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Periodic Table & Periodic trends
Periodic Table & Periodic trends
15 terms
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A lesson in periodic table organization and the trends based on it's periodicity
Flashcards
15 cards
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Practice quiz
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Questions
15
Answers
1
Elements that are poor conductors of electricity are likely _______
Metals
Metalloids
Nonmetals
Actinides
2
The modern periodic table is arranged in order of increasing ______
Atomic mass
Atomic number
Atomic charge
Valence electrons
3
Elements in the same group have _____
same state of matter
same atomic radius
same number of electrons
same number of valence electrons
4
From an elements LOCATION in the periodic table, you can predict...
it's properties
its chemical symbol
its chemical name
number of neutrons in its nucleus
5
Which parts of the atom move around the nucleus?
electrons
neutrons
protons
isotopes
6
The 2 most common alkaline earth metals are...
Sodium & Potassium
Calcium & Magnesium
Iron and Silver
Copper and Zinc
7
In Rutherfords gold foil exp. "some" + charged part's deflected strongly. so R. inferred that..
electrons move in orbits around the nucleus
an atom's + charge must be clustered in a tiny center
electrons have almost no mass
an atom consists of neg charges scattered in + charges
8
The majority of elements exist in what state?
Bose-einstein
Solid
Gas
Liquid
9
In general, what of the following statements about metals is true?
Metals must be stored in sealed safety containers
Metals are highly reactive
Metals are malleable, ductile, and conductive
Metals do not react with oxygen
10
The elements that don't ordinarily form compounds are the...
noble gasses
elements in the carbon family
Lanthanides
metals
11
At room temp more than 1/2 of the NonMetal elements are...
Solids
Gases
Alloys
Liquids
12
Atomic number is based on the
number of electrons around its core
number of protons in its nucleus
number of neutrons in its nucleus
mass of it's nucleus
13
Measurements of half-life make radioactive isotopes useful for...
tracing oil spills
radiation therapy
Determining the ages of rocks and fossils
building shields to absorb nuclear radiation
14
Beta radiation consists of particles that are identical to...
helium nuclei
electrons
X-rays
Your mom
15
Who arranged the elements by atomic mass and predicted properties of missing elements?
Lavoisier
Mosley
Mendeleev
Newlands
