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U1_C2_L3 Flashcards | StudBud
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U1_C2_L3
U1_C2_L3
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1
Metals are ductile when...
they are able to be drawn into thin wires
they are magnetic
they are shiny
they can be hammered into thin sheets
2
Which is NOT a property of most metals?
conductors
shiny
solid
gas
3
John Dalton made the Atomic theory
False
True
4
What are the physical properties of metals?
Shininess
Ductility
Malleability
Corrosion
5
Metals are ductile when...
they are able to be drawn into thin wires
they are shiny
they can be hammered into thin sheets
they are magnetic
6
What is the Periodic Table?
A table that shows elements in random order
A table that organizes elements in alphabetical order
A puzzle that, if put together right, creates a new planet
A table that organizes elements by their properties
7
A Molecule is a group of two or more atoms held together by chemical bonds
False
True
8
The atomic number is the number of protons in the nucleus of an element
False
True
9
who developed atomic theory
Leland Smith
Godwin Brown
Jim Thompson
John dalton
10
Who created the periodic table?
Galileo Galilei
Isaac Newton
Albert Einstein
Dimitri Mendeleev
11
Properties of metals
shine,easily shaped,solids
poor conductors of heat and electricity
12
Mendeleev saw the patterns in elements others did not.
True
False
13
What does the atomic number tell us about an element?
The number of neutrons in the nucleus of an atom
The number of electrons in the nucleus of an atom
The number of protons in the nucleus of an atom
The number of propons in the nucleus of an atom
14
3 properties of metals
hard, dull, low melting point
hard, lustrous, poor conductors of electricity
soft, lustrous, good conductors of heat
hard, lustrous, good conductors of electricity
15
Which of these are physical properties?
Flammability
Reactions with acid
Malleability
Corrosion
16
3 properties of metals
hard, lustrous, poor conductors of electricity
hard, lustrous, good conductors of electricity
hard, dull, low melting point
soft, lustrous, good conductors of heat
17
Dalton's Atomic Theory included:
Atoms are indivisible
All of these
Everything is made of atoms
Atoms cannot be destroyed
18
Are there metals on the periodic table?
Yes
No
19
Mendeleev named all the elements
True
False
20
Which is not a chemical property?
Bending a straw
Rusting
Flammability
Reactivity to oxygen
21
How did early periodic tables arrange the elements?
Decreasing atomic mass
Increasing atomic mass
Increasing atomic weight
Decreasing atomic weight
22
All metals are malleable
False
True
