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Atoms & The Periodic Table Flashcards | StudBud
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Atoms & The Periodic Table
Atoms & The Periodic Table
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1
What group makes up most of the periodic table?
Metalloids
Metals
Nonmetals
Noble Gases
2
What are nonmetals?
Gas at room temperature, rarely combines with other elements
not as shiny, conductors of heat and electricity, can be made into wires
Shiny, good conductors, easily shaped into wires, high density,
Not shiny, poor conductors , cannot be shaped into wires or shapes, brittle
3
What does 35.45 represent?
Atomic Mass
Element Name
Chemical Symbol
Atomic Number
4
What does the 17 represent?
Element Name
Atomic Number
Chemical Symbol
Atomic Mass
5
If an element has 15 protons and 15 neutrons, what is the atomic mass?
15
20
45
30
6
Which subatomic particle identifies the element?
Electron
Neutron
Atom
Proton
7
If an element has an atomic mass of 9 and it has 5 neutrons, how many protons does it have?
14
4
5
9
8
What does the Cl represent?
Element Name
Chemical Symbol
Atomic Number
Atomic Mass
9
How do we calculate the amount of neutrons in an atom?
Subtract the atomic number from the atomic mass
Add the atomic number and the atomic mass
Count the number of electrons in the electron shells
Add together the protons and electrons
10
Which subatomic particle has no charge?
Proton
Atom
Electron
Neutron
11
If an element has an atomic mass of 27 and the atomic number is 13, how many neutrons does it have?
13
27
40
14
12
Groups on the periodic table have what in common?
Same number of electron shells
Same atomic mass
Same atomic number
Same number of electrons in the outer shell
13
Rows on the periodic table are called what?
Periods
Columns
Compounds
Groups
14
Columns on the periodic table are called what?
Rows
Periods
Groups
Compounds
15
The atomic mass of an element tells us the number of what?
Protons and neutrons
Electron Shells
Protons and electrons
Electrons
16
What does Chlorine represent?
Atomic Number
Element Name
Chemical Symbol
Atomic Mass
17
Which subatomic particle has a positive charge?
Proton
Electron
Neutron
Atom
18
H2O is an example of an element.
True
False
19
Which parts of an atom are found in the nucleus?
Neutrons and protons
Neutrons only
Electrons and protons
Electrons and neutrons
20
Periods on the periodic table have what in common?
Same number of electron shells
Same atomic mass
Same number of electrons in the outer shell
Same atomic number
21
The atomic number of an element tells us the number of what?
Protons and neutrons
Electron Shells
Electrons
Protons and electrons
22
Which subatomic particle has a negative charge?
Electron
Atom
Proton
Neutron
23
Which subatomic particle is located outside the nucleus?
Atom
Proton
Neutron
Electron
24
The letters H, Na, O, and Au are all examples of:
Chemical formulas
Element compounds
Chemical names
Chemical symbols
25
What is the small building block of all matter called?
Substance
Element
Mixture
Atom
26
What are metalloids?
Not shiny, poor conductors , cannot be shaped into wires or shapes, brittle
not as shiny, conductors of heat and electricity, can be made into wires
Gas at room temperature, rarely combines with other elements
Shiny, good conductors, easily shaped into wires, high density,
27
What are metals?
Gas at room temperature, rarely combines with other elements
Shiny, good conductors, easily shaped into wires, high density,
Not shiny, poor conductors , cannot be shaped into wires or shapes, brittle
not as shiny, conductors of heat and electricity, can be made into wires
