Metals!
Adding a proton to a nickel atom make...
copper
an isotope
an ion
a bond
Most magnesium atoms have __ neutrons.
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12
When 2 or more atoms share electrons to form a bond.
covalent bond
ionic bond
metallic bond
isotopic bond
What happens when a metal reacts with water?
Metal + water = metal hydroxide + hydrogen gas
metal + acid = salt + hydrogen gas
where electrons are found in an atom, these orbit the central nucleus.
all the known elements organised by how full the outer most electron shell is and atomic #
The atomic number....
all of the above
Is the smaller number in the box
is the number of protons
is the number of electrons
NEUTRON
a subatomic particle with a no charge and a mass of 1.
the mass per volume of a substance; e.g. grams per cubic cm.
group 18 of the periodic table; will not form an ion.
the number of protons in the nucleus of an atom.
Potassium has ___ valence electrons.
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1
What is a chemical property of hydrogen?
it is flammable
it rusts
it reacts violently with neon
it is a gas
the atomic mass is the...
average number of neutrons + the number of protons
electrons + protons
electrons - protons
neutrons + protons
ATOMIC NUMBER
the number of protons in the nucleus of an atom.
the number of neutrons in the nucleus of an atom.
the number of electrons in the nucleus of an atom.
The larger number in an elements box
Adding neutrons to a nickel atom make...
an isotope
an ion
copper
a bond
Valence means....
the number of electrons in the outermost shell
the number of protons
the number of electrons
the number of protons + electrons
Adding an an electron to a nickel atom make...
an ion
an isotope
copper
a bond
Which is a chemical property?
Flammability
density
malleability
color
2 Li + 2 H2O →
2 LiOH + H2
LiOH + H
LiOH
H2
Alkaline metals react with water to produce...
all
a base
hydrogen gas
heat
Which is NOT a subatomic particle?
isotope
proton
electron
neutron
Group 17 elements...
have one empty slot for electrons on their outermost shell
have a valence of 3
are full
have more protons than neutrons
Group 17 often bonds with group ____.
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1
The alkaline metals have a valence of...
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1
In Silver Oxide, which atom gives away the electrons?
Oxygen
Silver
both
Hydrogen
Oxygen needs ___ electrons to have a full outermost shell.
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2
Which is a physical change?
melting
rusting
reacting with water
burning
Oxygen has ___ valence electrons.
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6
ATOMIC MASS
the number of protons + the number of neutrons in the nucleus of an atom.
a mixture of metals or a mixture of a metal and a non metal.
ionic compounds created in metal + acid reactions.
Metal + oxygen = metal oxide.
Neon has ___ valence electrons.
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8
DENSITY
the mass per volume of a substance; e.g. grams per cubic cm.
the ability of a metal to have its shape changed without breaking.
ionic compounds created in metal + acid reactions.
a substance which is able to transfer heat using the vibrations of its atoms.
One molecule of Lithium Oxide has how many Lithium Atoms?
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2
HYDROGEN GAS
A gas given off in metal + acid reactions.
a subatomic particle with a negative charge and almost no mass.
an atom which has bonded with oxygen.
a mixture of metals or a mixture of a metal and a non metal.
To find out a chemical property of a substance ....
A chemical reaction must happen
The property must be chemical
The chemicals must have properties
The substance changes shape
Group 18 elements have ____ outer shells.
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full
Sulpher has ___ electrons.
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16
Helium has an average of 2.0026
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neutrons
ELECTRICAL CONDUCTOR
a substance which is able to carry an electrical current using delocalised electrons.
A gas given off in metal + acid reactions.
a substance which is able to transfer heat using the vibrations of its atoms.
a subatomic particle with a positive charge and a mass of 1.
When one atom gives its electrons to another to form a bond.
ionic bonds
covalent bonds
metallic bonds
bonding bonds
ELECTRON
a subatomic particle with a negative charge and almost no mass.
A gas given off in metal + acid reactions.
a substance which is able to transfer heat using the vibrations of its atoms.
the ability of a metal to have its shape changed without breaking.
Group 2 elements have ___ valence electrons.
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2
Group ___ is one away from full valence
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17
Mg bonds with CL it makes...
MgCl2
MgCl
ClMg
Hydrogen
Cobalt has __ protons.
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27
Calcium has ___ electrons.
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20
Group 2 have a valence of...
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2
very reactive, make a base when reacting with water, float on water, very malleable
alkaline metals
poor metals
transition metals
metaloids
not malleable, shiny silver, poor conductors
metaloids
transition metals
alkaline metals
poor metals
OXIDE
an atom which has bonded with oxygen.
a subatomic particle with a no charge and a mass of 1.
all the known elements organised by how full the outer most electron shell is and atomic #
the number of protons + the number of neutrons in the nucleus of an atom.
SALT
ionic compounds created in metal + acid reactions.
Metal + oxygen = metal oxide.
Metal + water = metal hydroxide + hydrogen gas
all the known elements organised by how full the outer most electron shell is and atomic #
A molecule of bonded aluminum and chlorine will have ___ chlorine atoms.
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3
less reactive, weak metals
poor metals
alkaline metals
transition metals
metaloids
Group 1 elements have ___ valence electrons.
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1
MELTING POINT
the temperature at which a solid becomes a liquid
A gas given off in metal + acid reactions.
a subatomic particle with a negative charge and almost no mass.
group 18 of the periodic table; will not form an ion.
Which is a way to prevent iron from rusting?
all are ways
cover the metal with a less reactive metal
cover the metal with oil
prevent contact with water and oxygen
Chlorine has ___ valence electrons.
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7
Calcium has ___ valence electrons.
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2
HEAT CONDUCTOR
a substance which is able to transfer heat using the vibrations of its atoms.
where electrons are found in an atom, these orbit the central nucleus.
Metal + oxygen = metal oxide.
an atom which has bonded with oxygen.
Chlorine needs ___ electrons to have a full outermost shell.
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1
ELECTRON SHELL
where electrons are found in an atom, these orbit the central nucleus.
a mixture of metals or a mixture of a metal and a non metal.
a subatomic particle with a positive charge and a mass of 1.
Metal + water = metal hydroxide + hydrogen gas
PROTON
a subatomic particle with a positive charge and a mass of 1.
a subatomic particle with a negative charge and almost no mass.
the number of protons + the number of neutrons in the nucleus of an atom.
the number of protons in the nucleus of an atom.
NOBLE GAS
all are correct
group 18
rarely bond
full outermost electron shells
Ionic bonds form between ....
metals and non-metals
non-metals and non-metals
metals and metals
isotopes
What happens when a metal is combined with an acid?
metal + acid = salt + hydrogen gas
Metal + water = metal hydroxide + hydrogen gas
the number of protons in the nucleus of an atom.
ionic compounds created in metal + acid reactions.
What happens when a metal reacts with oxygen?
Metal + oxygen = metal oxide.
the mass per volume of a substance; e.g. grams per cubic cm.
the number of protons in the nucleus of an atom.
metal + acid = salt + hydrogen gas
ALLOY
a mixture of metals or a mixture of a metal and a non metal.
the number of protons + the number of neutrons in the nucleus of an atom.
a subatomic particle with a no charge and a mass of 1.
Metal + water = metal hydroxide + hydrogen gas
malleable
the ability of a metal to have its shape changed without breaking.
the temperature at which a solid becomes a liquid
Metal + oxygen = metal oxide.
a subatomic particle with a positive charge and a mass of 1.
PERIODIC TABLE
all the known elements organised by how full the outer most electron shell is and atomic #
where electrons are found in an atom, these orbit the central nucleus.
an atom which has bonded with oxygen.
a mixture of metals or a mixture of a metal and a non metal.