Multiple ChoiceWhich of the following answers give the correct number of subatomic particles for ?1304views16rank
Multiple ChoiceWhich of the following answers give the correct number of subatomic particles for ?1166views11rank
Open QuestionWhich of these refers to atoms with the same atomic number but different atomic masses?233views
Open QuestionThe atomic number of fluorine is 9 and its atomic mass is 19. How many neutrons does fluorine have?396views
Open QuestionOne isotope of sodium has 11 protons and 7 neutrons. What is the mass number of this isotope?265views
Open QuestionHow many protons, neutrons, and electrons are there in a neutral atom of 131I (iodine-131)?280views
Open QuestionTwo isotopes of the same element will have the same number of _____ but a different number of ____.238views
Open QuestionHow many protons, neutrons, and electrons are there in a neutral atom of 30P (phosphorus-30)?224views
Open QuestionAn isotope of yttrium has 39 protons and 59 neutrons. What is the mass number of that isotope?331views
Open QuestionThe superscript preceding each hydrogen atomic symbol (H) represents which of the following?248views
Open QuestionCan two atoms with the same mass number ever be isotopes of each other? Explain.209views
Open QuestionDetermine the number of protons and the number of neutrons in carbon-14 and write its symbol in the form AZX, considering that the amount of carbon-14 in ancient artifacts and fossils is often used to establish their age.
Open QuestionDetermine the number of protons and neutrons in uranium-235, which is used in nuclear fission, and write its symbol in the form AZX.
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