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Can the chemical properties of a substance be observed without changing the substance?
physical properties
Can you tell the chemical properties of a can by looking at a picture whether it is a tin can aluminum can or a crushed can?
No, you cannot determine the chemical properties of a can just by looking at a picture. Different metals like tin and aluminum have distinct physical properties, but to identify the exact metal used in a can, you would need to perform a chemical analysis or consult the manufacturer's specifications.
How do you identify if a substance is metal matalloid or non metal?
In simple terms just by looking at them, and doing an electrical conductivity test you can tell the following. the metals are shiny and conduct electricity. The non-metals which are gases or liquids are easy to distinguish. The solid non metals such as sulfur are not shiny and do not conduct electricity. (graphite conducts electricity but is soft and not that shiny). The metalloids look a bit like metals but are very poor conductors of electricity.
Why do nonmetals not have their own name instead of being not like metals?
They do have their own names! The periodic table is actually split up into far more groups then just the metals and non-metals. The groups actually are as following: The Alkali metals The Alkaline earth metals The Lanthanides The Actinides The transition metals Other metals (all of the above are collectively grouped as the metals.) The Metaloids (these can neither be definitely grouped as metals or non-metals as they share properties of both.) Other non-metals The Halogens The Noble gases (these are collectively grouped as non-metals.) The reason for the fact that the collective groups being known as just the metals and non-metals is most likely due to the fact that there are far more metals, so it is more likely that these were discovered and then named first. There is no strong definition on what is a metal or non-metal, however, non-metals can generally be defined by having a negative valence whereas metals have a positive valence.
What are some physical and chemical properities of paper that can be observed?
The physical properties I know of are the shape which are either a square or rectangle, the color which is either white or different colors. The chemical properties I know of are just before you make the paper, that's pretty much it...
Can the chemical properties of a substance be observed without changing the substance?
physical properties
Name 5 physical properties of matter that can be observed?
There are many different physical properties of matter that can be observed. Consistency, color, and texture are just 3 properties.
How do chemical and physical properties differ?
chemical properties cannot be determined just by viewing or touching the substance and physical properties can be observed or measured without changing the composition of matter.
Can you tell the chemical properties of a can by looking at a picture whether it is a tin can aluminum can or a crushed can?
No, you cannot determine the chemical properties of a can just by looking at a picture. Different metals like tin and aluminum have distinct physical properties, but to identify the exact metal used in a can, you would need to perform a chemical analysis or consult the manufacturer's specifications.
How are medolloids different to medals and non medals?
metalloids are different from metals and non metals as they consist the properties of both metals and non metals. but they cannot put under any of the catergories. just a metalloid
Give one property that is typical of non metals?
Physical properties of nonmetals are generally just the opposite of metals so: - No luster (dull appearance) - Not ductile - Low density - Low melting point - Poor conductor - Not malleable The chemical properties of non metals just tend to gain electrons Hope that helps
Do metaloids contain metals and nonmetals?
Metalloids do not contain either metals or nonmetals. They are elements that have properties of both metals and metalloids, and are found between the metals and nonmetals on the periodic table.
Why aren't metalliods just considered metals or nonmetals?
They have properties of both so it would be inaccurate to specify metal or nonmetal
How do you identify if a substance is metal matalloid or non metal?
In simple terms just by looking at them, and doing an electrical conductivity test you can tell the following. the metals are shiny and conduct electricity. The non-metals which are gases or liquids are easy to distinguish. The solid non metals such as sulfur are not shiny and do not conduct electricity. (graphite conducts electricity but is soft and not that shiny). The metalloids look a bit like metals but are very poor conductors of electricity.
Why do nonmetals not have their own name instead of being not like metals?
They do have their own names! The periodic table is actually split up into far more groups then just the metals and non-metals. The groups actually are as following: The Alkali metals The Alkaline earth metals The Lanthanides The Actinides The transition metals Other metals (all of the above are collectively grouped as the metals.) The Metaloids (these can neither be definitely grouped as metals or non-metals as they share properties of both.) Other non-metals The Halogens The Noble gases (these are collectively grouped as non-metals.) The reason for the fact that the collective groups being known as just the metals and non-metals is most likely due to the fact that there are far more metals, so it is more likely that these were discovered and then named first. There is no strong definition on what is a metal or non-metal, however, non-metals can generally be defined by having a negative valence whereas metals have a positive valence.
What is a scientist looking at when he is using a microscope to view a crystalline structure?
One possible answer is he/she is looking at the crystal structure that forms in a metal lattice, or just metals. These crystals can vary in size by the processes of quenching, anealling and tempering, larger, moderate and smaller respectively. The crystal sizes can vary the properties of the metal, making it more ductile, harder, brittle, softer, etc.
What separates the metals from non-metals?
There is also usually a bold zig-zag line running from just left of boron (#5) to the lower right hand corner of the table. Some people think this line looks like a staircase, so the scientific community calls it the staircase. This line separates elements that have been observed to be metals from those that have been observed to be non-metals. Elements touching the staircase often have some properties of both metals and non-metals, so they are called semi-metals or metalloid
