8th Grade - Atomic Structure and The Periodic Table
Quiz by Sarah Cameron
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30 questions
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- Q1An electron is best described as a subatomic particle that ...makes up the majority of an atom's volume and has a negative charge.makes up the majority of an atom's mass and has a positive charge.makes up the majority of an atom's mass and has a negative charge.makes up the majority of an atom's volume and has a positive charge.30s
- Q2The majority of the atomic mass of an atom is is composed of ...Protons and NeutronsProtons onlyProtons and ElectronsNeutrons and Electrons30s
- Q3An element's identity is defined by the number of which subatomic particle contained in it's atoms?NucleusNeutronsProtonsElectrons30s
- Q4An atom's Atomic number is equal to ...it's number of protons and electrons.it's number of protons and neutrons.it's number of neutrons and electrons.it's atomic mass.30s
- Q5Which subatomic particles reside in the atom's nucleus?Protons and ElectronsNeutrons and DNAElectrons and NeutronsNeutrons and Protons30s
- Q6Which subatomic particles orbit the nucleus in a cloud?ElectronsProtonsMassNeutrons30s
- Q7How many neutrons does Magnesium contain?2411121330s
- Q8How many neutrons does Selenium contain?4579344430s
- Q9How many neutrons does Argon have?2140182230s
- Q10A neutron has a _______________ charge.PositiveNeutralFullNegative30s
- Q11Which of the following atoms has a greater level of reactivity than Aluminum?MagnesiumHeliumBoronSilicon30s
- Q12Which subatomic particle determines an atom's level of reactivity?Number of protonsNumber of valence electronsMass numberNumber of neutrons30s
- Q13Which element is less reactive than Nitrogen?PhosphorusBerylliumOxygenCarbon30s
- Q14Which element's atoms has three energy levels and six valence electrons?PhosphorusSulfurOxygenSelenium30s
- Q15Which element is not classified as a metalloid?AluminumArsenicSiliconBoron30s