WorksheetsScience Quiz
Total questions: 8
Worksheet time: 5mins
What are the 2 different types of solids?
Crystal
Amorphous
Diamond
Graphite
Define crystal:
Well defined edges and faces, different x-rays and tend to have sharp melting points
Irregular or curved surfaces, do not five well resolved x-ray diffraction patterns, and melt over a wide range of temperatures.
Describe Amorphous:
Irregular or curved surfaces, do not give well-resolved x-ray diffraction patterns, and melt over a wide range of temperatures.
Well-defined edges and faces, different x-rays and tend to have sharp melting points.
How does hydrogen and oxygen form a molecule?
The electron from each atom feels attraction to the protons from the nucleus in the other atom. This pulls both atoms
They form togther and attract each others protons
They are opaque
What is the extended structure of sodium chloride?
15 chloride
14-soduim
13-chloride
16- soduim
What is the difference is diamonds and graphite?
Graphite- opaque and metallic
Diamond- transparent and brilliant
Graphite- transparent and brilliant
Diamond-opaque and metallic
What are the states of matter? 4 answers
Solid
Liquid
Gas
Plasma
Diamond
How elements are different from atoms?
They are pure subastances
Elements are pure substances with specific properties. Atoms are the smallest units of elements that still retain the elements properties
Atoms are smaller
