Karteikarten
Chemistry
Karten in diesem Stapel (38)
- 1What is chemistry?chemistry is the study of matter and the way it behaves under different conditions.
- 2Define matter.Matter is anything that has weight and takes up space.
- 3Matter can be classified as what?Matter can be classified as a solid, liquid, and gas.
- 4There are three kinds of matter. What are they?They are compound, elements, and mixtures.
- 5What is a substance?A substance is a element or compound.
- 6What are elements?Elements are the basic building blocks of all matter.
- 7Elements can not do something. What is that, that they can not do?They can not be broken down into a simpler form.
- 8How many elements are there in the periodic table?There are 118elements in the periodic table.
- 9What are elements made up of?Elements are made up of very tiny atoms.
- 10What is an atom?An atom is the smallest particle of an element.
- 11A single is like a what?A single atom is a like a little solar system in which the planets whirl or spin around the sun.
- 12Where is the nucleus found in the atom?It is found in the center of the atom.
- 13What makes up the nucleus?The protons and neutrons.
- 14What is the smallest part of the atom?The smallest part of the atom is the electrons.
- 15What do atoms make when they join together?They make elements.
- 16Atoms that make up an element are all the same what?Atoms that make up an element are all the same type.
- 17How many atoms make up Aluminum, Carbon, and MercuryAluminum-5 aluminum atoms
Carbon-12 carbon atoms
Mercury-15 mercury atoms - 18What is the name of the scientist that created the first letter as the chemical symbol.Jons Barnelius.
- 19Sometimes elements begin with the same letter so what was the solution for this?The solution for this was that the second letter was used.
- 20What is the chemical symbol for calcium, cobalt, chlorine, aluminum, gold, carbon, mercury, copper, and ironcalcium is C, cobalt is Co, Chlorine is Cl, aluminum is Al, gold is Au, Carbon is C, mercury is Hg, copper is Cu and iron is Fe.
- 21What happens if an element is broken down into a simper form.It looses its identity and becomes atoms of another element.
- 22There are two known elements that have exactly the same properties or characteristics. What are those two known elements.Metals and Non-Metals
- 23All metals are solid except some. Give three examples of non-solid metals.Gold, Mercury, Iron
- 24What is a compound?A compound is a substance that has two or more elements which combine chemicals.
- 25What happens when elements combine?When elements combine they loose their physical, and chemical properties and turn into a new substance.
- 26Give two examples of compounds.Water and Salt.
- 27When hydrogen gas and oxygen gas combine what do they form?They form Water.
- 28When sodium metal and chlorine gas combine, What do they form.Salt.
- 29What is a molecule?A molecule is the smallest particle of a compound.
- 30When there is no number next to a formula, what does this means?This means that there is only one number of atom.
- 31Define the term periodic table.this is a chart that arranges the elements in order of increasing masses.
- 32The periodic table is divided by what?By a thickened zig- zag line
- 33Elements on the left side of the zig zag line are called what?Metals
- 34Elements on the right side of the zig zag line are called what?non-metals
- 35Elements to the far right are called what?Noble gases.
- 36Noble gases are what? and what does it means?they are inert (un- reactive) and this means they do not join with other atom under any normal conditions?
- 37The mass number states what?The atomic mass states the protons and the neutrons in the nucleus.
- 38The atomic number states what?The atomic number states the protons and neutrons in an element.
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- 8 Science Karteikarten am Chemistry, erstellt von Isaac Oppong am 20/11/2016.
- Erstellt von
- Isaac Oppong
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