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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
What is an isotope???An isotope is an element with more neutrons then protons
what is electron configurationWriting out the electrons on the shell(2,8,8,2)
What is atomic numberHow many protons are in the atom
What is the mass numberThe number of protons+neutrons
Who was the first person to use the word atomIn 1805 John dalton
Who put the periodic table in order of massIn 1965 John newlands
Who put the periodic table in order of mass but left gapsIn 1969 Dmitri Mendeleev
How much weight does a proton have1
How much weight does a neutron have1
How much weight does a electron have1/1835
What are atoms made up ofTiny subatomic particles called neutrons electrons and protons
What language is the word atomGreek
What type of microscope is used to see atomsElectron microscope
What does the word subatomic meanSubatomic means inside the atom
What type of charge does a proton havePositive
What type of charge does an electron haveNegative
What type of charge does a neutron haveNo charge
In what year was it suggested that electrons orbit the atom1913 by Niels Bohr
What are the electrons onShells
All atoms are neutral which meansThere 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 tableSmaller
Is the mass number the smaller or larger number on the periodic tableLarger
What is nuclear formula?The showing of the atomic and the mass number on the periodic table
What is the smallest particle of an elementAn atom
How do you get the number of neutrons in an atomMass number-atomic number