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by BlastRoom
Review isotopes, pure substances, periodic-table development, element regions, and electron structure.
#matatag_science_8
40 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Which description correctly compares isotopes of the same element?
Which isotope does the model represent?
Aluminum-27 has an atomic number of 13. Which particle counts describe a neutral atom?
Which hydrogen isotope has one proton and one neutron?
What does an element's average atomic mass represent?
Use approximate isotope masses of 35 amu and 37 amu. If their abundances are 75% and 25%, respectively, what is the average mass?
An element has two isotopes. If the heavier one becomes more abundant, what happens to the sample's average atomic mass?
Why can carbon-14 help estimate the age of once-living archaeological material?
How is technetium-99m commonly used in medicine?
Which feature distinguishes a pure substance from a mixture?
Which box contains only a compound?
Which substance is an element?
Which description gives the composition of each water molecule?
How is sodium chloride classified by its bonding?
How is an HCl molecule classified by its atoms?
Why is oxygen gas, O₂, not a compound?
Household vinegar contains acetic acid dissolved in water. How is the vinegar classified?
In Döbereiner's triads, how did the middle element's atomic mass compare with those of the other two?
What repetition did Newlands describe when he arranged elements by increasing atomic mass?
Which scientist left gaps in his table and predicted the properties of undiscovered elements?
Whose X-ray studies established atomic number as the basis for ordering elements?
What was a major limitation of the Law of Octaves?
Which symbol represents potassium?
How are elements ordered across the modern periodic table?
Which description gives the standard layout of the modern periodic table?
Which letter marks an alkaline earth metal?
Name the highlighted element in the excerpt.
Copper belongs to which broad region of the periodic table?
Select the inner transition element marked in the figure.
How is silicon classified in the periodic table?
Which listed element is the most reactive halogen?
What does the shaded region in an electron-cloud model describe?
How can an electron move from one energy level to a specified higher level?
What is the maximum electron capacity of the first shell?
What is the maximum electron capacity of the third shell?
How many valence electrons does the modeled atom have?
Choose the ground-state electron configuration of phosphorus.
What do the dots around the symbol represent?
Why do lithium and sodium show similar chemical behavior?
Which period contains the element represented by this model?
Crack the passcode before the zombies get in.
Pick a tile, answer, hit bonuses and steals.
Term 2 Review
40 questions
