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Atoms

QuestionAnswer
What is an atom The smallest part of matter
What is the mass number The amount of protons and neutrons
What is the atomic number Number of protons
The number of electrons is the same as The number of protons
Shell one can have how many electrons 2
Shell two can have how many electrons 8
Shell three can have how many electrons 18
What is the periodic table An organised chart of all the known elements
What are groups The vertical columns on the periodic table
What are periods The horizontal rows on the periodic table
Where are the transition metals found In the middle of the periodic table
Where are the halogens found In group 17
What are the properties of halogens brightly colored
Why are the elements in Group 18 called noble gases Because they have a full outer shell and don't react
Where are the alkali metals found Group one
What are the characteristics of alkali metals They react strongly to water and form basic solutions
What are group two the alkaline earth metals
what is found on the left hand side of the table the metals
What are the 8 elements that are next to the zig zag line They are metaloids
What are some features of metals They are solid at room temperature They are malleable. They can be made into a wire. They can be made shiny
What are some feature of non-metals They are usually dull or glassy Most are gases at room temperature They melt at low temperatures Most are poor conductors of heat and electricity They are brittle
What features do metaloids have They have features of both metals and non metals
What is an atom made up of A nucleus with protons and neutrons and several shells with electrons on the shells
How many metaloids are there, name two eight, boron and silicon
What is electron configuration? A list of the number of electrons in each shell.
If the atomic number of Na is 11, what is the electron configuration 2,8,1
What is an ion A charges element or molecule
What is a cation A positive ion
What is a anion A negative ion
What are ionic compounds made up of A metal and a non metal
What is matter made up of atoms
What are the 3 particles that atoms are made from and the charge they have Protons: Positive Electrons: Negative Neutrons: Neutral
What is in the periodic table All of the known elements
Where are the noble gases found on the periodic table? Group 8
Why are the group 8 elements special Because they have a full outer shell and don't react
What are the group 8 elements called? The noble gases
What is a molecule A group of atoms bounded together
What is a compound A mix of two different elements
Created by: eknox