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Periodic Table Flashcards | StudBud
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Periodic Table
Periodic Table
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Periodic table and atoms
Flashcards
27 cards
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Questions
27
Answers
1
What can you tell about an element based on its location on the periodic table?
its properties
the order in which it was discovered
its symbol
the person who discovered it
2
Which is a characteristic of metalloids?
poor conductors of heat and electricity
semiconductors
dull and brittle
malleable and ductile
3
Which period is Silicon in?
3
1
4
2
4
Elements that are gases at room temperature are ___.
nonmetals
metals
metalloid
5
Which part of an atom is negatively charged?
proton
nucleus
electron
neutron
6
How many valence electrons does Germanium have?
2
1
4
5
7
Which type of element is malleable and ductile?
nonmetal
metalloid
metal
8
Which element has properties similar to Fluorine?
Carbon
Neon
Boron
Chlorine
9
Members of the same group share __
the same number of energy levels
same number of valence electrons and similar properties
the same number of protons
similar properties
10
How are elements arranged on the modern periodic table?
by properties
by atomic mass
by energy levels
by atomic number
11
Atoms with the same number of protons but different numbers of neutrons are called __.
ions
electron clouds
isotopes
12
How many protons in the atom shown?
20
19
cannot be determined
39
13
Who arranged elements by their atomic masses and noticed their properties repeat periodically?
Mendeleev
Bohr
Rutherford
Dalton
14
Who discovered the nucleus of an atom by shooting atomic particles at gold foil?
Dalton
Thomson
Rutherford
Bohr
15
The atomic mass of an atom tell us how many ___.
neutrons
protons
electrons
protons and neutrons
16
Which type of element conducts heat and electricity well?
metalloids
metals
nonmetals
17
Where does most of the mass of an atom come from?
protons and electrons
protons
protons and neutrons
neutrons
18
Which part of an atom is neutral?
proton
protons and electrons
electron
neutron
19
Who proposed the idea that electrons orbit the nucleus in energy levels like planets around sun
Rutherford
Thomson
Dalton
Bohr
20
Which group of metals is the most reactive?
alkali metals
alkaline earth metals
transition metals
21
Which metal is found as a liquid at room temperature?
silver
platinum
mercury
gold
22
At room temperature, most nonmetals are ___
solids
gases
liquids
23
Which type of element is brittle and dull when found as solid?
metal
metalloid
nonmetal
24
How many neutrons in chlorine?
17
18
35
25
An atom that has more protons than electrons is ___
a neutron
an ion
an isotope
26
Which group/family contains elements that are essential to life?
oxygen family
alkaline earth metals
carbon family
halogens
27
The positively charged particles of an atom are __
neutrons
electrons
nucleus
protons
