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Periodic Table of Elements Flashcards | StudBud
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Periodic Table of Elements
Periodic Table of Elements
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Periodic Table of Elements
Flashcards
35 cards
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Questions
35
Answers
1
How many protons, electrons, and neutrons does Xe have?
77,54,54
5,4,77
54,77,50
54,54,77
2
How many protons and neutons does Carbon have?
12,6
6,12
6,6
6, 5
3
The __of an element is the total number of protons and neutrons in the ___of an atom.
atomic weight, symbol
nucleus, atomic symbol
atomic name, atomic number
atomic number, nucleus
4
Electrically charged atoms are called ___?
mixture
molecule
ion
bond
5
Boiling point of water is?
45C
0C
32C
100C
6
Who discovered that neutrons are in the nucleus and have no charge?
James Chadwick
J.J. Thompson
Ernest Rutheford
Neil Bohr
7
What tells you the number of protons on the periodic table of element chart?
Atomic Mass
Atomic Number
Group Number
Symbol Name
8
Substances composed of 2 or more chemically combined elements are __?
Mixtures
Molecules
Pure substance
Compounds
9
Who concluded that electrons orbit around the nucleus of an atom?
J.J. Thompson
James Chadwick
Neil Bohr
Ernest Rutheford
10
Mixtures that are not mixed evenly and they contain their own properties are __?
solution
homogeneous
liquids
heterogeneous
11
The theory that electrons do not orbit, but move at a high speed in a cloud is called__?
Bohrs Theory
Atomic Theory
Periodic Table
Modern Theory
12
Name the three particles of an element.
mass number, atomic weight, atomic number
protons, electrons, atomic number
compunds, mixtures, and elements
electrons, protons, neutrons
13
The three states of matter are____.
solid, water, condensation
solid, liquid, gas
liquid, metal, solid
melting, solid, freezing
14
Matter that has definite chemical and physical properties is called__?
elements
mixture
compound
pure substance
15
In what state does pure Carbon exist at room temperature?
mixture
liquid
solid
gas
16
An element in group 6 has ____ valence electrons.
2
6
4
5
17
Mixtures that are mixed thoroughly are___.
compounds
heterogenous
homogeneous
matter
18
The ability to be pressed or pounded into a thin sheet.
solubility
malleability
density
boiling point
19
Which particle orbits an atoms nucleus?
isotope
neutron
electron
proton
20
What is the atomic mass?
12.1
12
13
12.0107
21
The group number tells you....
the number of neutrons
the atomic weight
the number of electrons
the valence electrons
22
Is salt a compound or a mixture?
mixture
compound
23
Which describes the snack?
solution
compoud
homogeneous mixture
heterogeneous mixture
24
2 or more elements or compunds, and they are not chemically combined.
mixture
compound
element
solution
25
What model is used to show valence electrons?
Lewis
Thompson
Bohrs
Dalton
26
What is matter?
heat
light
the atomic weight of an atom
Anything that takes up space
27
Atoms of the same element with different numbers of electrons.
neutron
isotope
proton
ion
28
The melting point of ice is?
36C
0C
12C
45C
29
How do you round the atomic weight?
don't round
round up
round to the nearest whole number
round down
30
What is the atomic mass?
132
131.2
131
131.293
31
What period and group is Cl?
3,7
4,5
6,3
7,3
32
In which state of matter do atoms vibrate but remain in fixed position?
gas
liquid
solid
solution
33
What element is period 2, group 8?
Neon
Hydrogen
Flourine
Calcium
34
Things that can be observed without changing the make-up or identity of matter are
density
chemical change
matter
physical properties
35
Mixtures that are evenly mixed throughout are called__.
mixed
heterogeneous
compound
homogeneous
