Transcript Salad cream is an emulsion

A gas at a high pressure glows if we
apply a high voltage to it
False.
The right answer is…..
A gas at a low pressure glows if we
apply a high voltage to it
Neon is the gas used for blue signs
False.
The right answer is…..
Neon is the gas used for red signs
Light bulbs are filled with radon gas
False.
The right answer is…..
Light bulbs are filled with argon gas
The metal filaments in a bulb are
made of iron
False.
The right answer is…..
The metal filaments in a bulb are made
of tungsten
Argon is used in the extraction of steel
metal
False.
The right answer is…..
Argon is used in the extraction of
titanium metal
Krypton is used by doctors to operate
on bones
False.
The right answer is…..
Krypton is used by doctors to operate on
eyes
In granite there are big amounts of
radium.
False.
The right answer is…..
In granite there are small amounts of
radium.
Radium breaks down into argon gas
False.
The right answer is…..
Radium breaks down into radon gas
Radon gas is not radioactive so it
can´t become a danger to health
False.
The right answer is…..
Radon gas is radio active so it can become
a danger to health
Radon is used to treat colds
False.
The right answer is…..
Radon is used to treat cancer
The Periodic Table was created by a
Swedish scientist
False.
The right answer is…..
The Periodic Table was created by a
Russian scientist
The Periodic Table was discovered by
Casper Dmitri
False.
The right answer is…..
The Periodic Table was discovered by
Dmitri Mendeleev
The Periodic Table was completed by
Dmitri Mendeleev
False.
The right answer is…..
The Periodic Table wasn´t completed by
Dmitri Mendeleev, some elements were
undiscovered, so he left some gaps.
Germanium was discovered after
element 101
False.
The right answer is…..
Germanium was discovered before
element 101
The periodic Table was discovered in
1769
False.
The right answer is…..
The periodic Table was discovered in 1869
Dmitri was the oldest of 15 children
False.
The right answer is…..
Dmitri was the youngestof 17 children
Element 103 was named in honour of
its inventor
False.
The right answer is…..
Element 101 was named in honour of its
inventor