Periodic table symbols (10 seconds)
What is symbol for Hydrogen?
H
What is an Alloy
An alloy is a mixture of two or more elements, where at least one element is a metal.
What is an element?
A pure substance which is made from only one type of atom.
Can water be found on the periodic table?
No. Water is a compound, H₂O. The periodic table is made up of elements.
What is the symbol for Carbon?
C
What do we use stainless steel for and why?
What is a compound?
A pure substance made from two or more elements which are chemically bonded in a fixed ratio.
In which two types is the periode table divided?
metals and non-metals
What is Md?
Mendelevium
What are the elements of stainless steel?
Chromium and iron
What is a mixture?
When two or more compounds or elements are present without being chemically bonded together.
What are the rows called?
periods
What is the symbol for oxygen?
O2
What are the elements of Tool steel
Tungsten and iron
Most elements are...
metals
What are the columns called?
What is the symbol for silver?
Ag
What are the elements of Mild steel
Carbon and iron
How many elements are listed on the periodic table?
118
Why is Hydrogen placed seperately on the table?
Hydrogen has lots in common with the metals in group 1, however, hydrogen is not a metal.