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12 questions
Show answers
- Q1Which element has the atomic number 8?GoldLithiumSulfurOxygen30s
- Q2Which element has the symbol 'Na'?AluminumSodiumSiliconNitrogen30s
- Q3Which subatomic particle has a positive charge?ElectronProtonNeutronQuark30s
- Q4What is the smallest particle of an element that retains its chemical properties?IonNeutronAtomMolecule30s
- Q5Which subatomic particle has no charge?ProtonElectronNeutronPhoton30s
- Q6Which subatomic particle has a negative charge?ProtonPhotonNeutronElectron30s
- Q7Which subatomic particle determines the atomic number of an atom?ProtonNeutronPhotonElectron30s
- Q8
What is another name for the rows in the periodic table?
groups
periods
families
30s - Q9
What is the charge of a atom that has the same number of protons as electrons?
negative
positive
neutral
30s - Q10
Which of the following elements is liquid at room temperature?
calcium
sodium
oxygen
mercury
30s - Q11
Which group in the periodic table is the most reactive
group 17
group 2
group 1
group 18
30s - Q12
Which of the following is the least reactive groups in the periodic table?
group 2
group 14
group 18
group 1
30s