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level: Level 1

Questions and Answers List

level questions: Level 1

Question	Answer
What is an isotope???	An isotope is an element with more neutrons then protons
what is electron configuration	Writing out the electrons on the shell(2,8,8,2)
What is atomic number	How many protons are in the atom
What is the mass number	The number of protons+neutrons
Who was the first person to use the word atom	In 1805 John dalton
Who put the periodic table in order of mass	In 1965 John newlands
Who put the periodic table in order of mass but left gaps	In 1969 Dmitri Mendeleev
How much weight does a proton have	1
How much weight does a neutron have	1
How much weight does a electron have	1/1835
What are atoms made up of	Tiny subatomic particles called neutrons electrons and protons
What language is the word atom	Greek
What type of microscope is used to see atoms	Electron microscope
What does the word subatomic mean	Subatomic means inside the atom
What type of charge does a proton have	Positive
What type of charge does an electron have	Negative
What type of charge does a neutron have	No charge
In what year was it suggested that electrons orbit the atom	1913 by Niels Bohr
What are the electrons on	Shells
All atoms are neutral which means	There are the same amount of protons and electrons
What 2 subatomic particles are in the nucleus( the middle of the atom)	Protons and neutrons
Is the atomic number the smaller or larger number on the periodic table	Smaller
Is the mass number the smaller or larger number on the periodic table	Larger
What is nuclear formula?	The showing of the atomic and the mass number on the periodic table
What is the smallest particle of an element	An atom
How do you get the number of neutrons in an atom	Mass number-atomic number