Chemistry Final ACS Exam (2024) A+ Graded.

Accuracy? correct answers Closeness of measurements to the TRUE VALUE of what is being measured Precision? correct answers Closeness of a SET of measurements How do you calculate Percent Error? correct answers I experimental-accepted I ____________________ x 100 accepted value Are zeros infront of non-zero digis significant? correct answers Nope! ex: 0.0071 is only 2 sig figs Are zeros at the end of a number and to the right of the decimal significant? correct answers Yep! ex: 9.100 is 4 sig figs Addition/Subtraction in regards to sig figs? correct answers Round numbers to the least number of decimal places Multiplaction/Division in regards to sig figs? correct answers Round answers to the least amount of sig figs # of e- equal correct answers the # of p+ Atomic Mass? correct answers Number of protons in the nucleus (number on the left bottom corner of the chemical symbol) Atomic Mass Number? correct answers Number of protons and neutrons (number on the left upper corner of the chemical symbol) Isotope? correct answers Atoms of the same element, but with different masses (different number of neutrons) STUDY ELECTRON CONFIGURATIONS correct answers STUDY ELECTRON CONFIGURATIONS Do columns or rows in the Periodic Table have similar patterns? correct answers Columns (the "groups") have repeating patterns? Which area of the Periodic Table has greater metallicness? correct answers Left and down has greater metallicness Which area of the PT has greater atomic size? correct answers Left and down has a greater atomic size