MATTER & MATERIALS Crossword

The "stuff" that everything is made of
Tiny particles whose name comes from the Greek meaning "uncuttable"
If you combine two or more atoms you get this
The symbol for table salt
Its common name is water
This has no real shape of its own
Lightning is an example of this
Carbon dioxide is an example of this
I have the highest metal point
Hg is my symbol and I'm the only liquid metal
I'm flexible,lightweight,cheap but a hazard to sea life
I conduct electricity really well
I'm used as a circuit breaker
I stand for rows on the periodic table
I stand for columns on the periodic table
I developed the periodic table
I'm found on the left-hand side of the periodic table
I'm found on the right-hand side of the periodic table
I'm an example of a semi-metal (SI)
The atomic number refers to how many......an element has
My symbol is K
The amount of matter an object consists of
Gravitational pull exerted on an object
Unit for weight/force
cubic centimetres are used to measure this
My weight would be less here