Multiple ChoiceWhich of the following answers give the correct number of subatomic particles for ?1383views19rank
Multiple ChoiceWhich of the following answers give the correct number of subatomic particles for ?1225views16rank
Open QuestionWhich of these refers to atoms with the same atomic number but different atomic masses?252views
Open QuestionThe atomic number of fluorine is 9 and its atomic mass is 19. How many neutrons does fluorine have?428views
Open QuestionOne isotope of sodium has 11 protons and 7 neutrons. What is the mass number of this isotope?298views
Open QuestionHow many protons, neutrons, and electrons are there in a neutral atom of 131I (iodine-131)?315views
Open QuestionTwo isotopes of the same element will have the same number of _____ but a different number of ____.258views
Open QuestionHow many protons, neutrons, and electrons are there in a neutral atom of 30P (phosphorus-30)?245views
Open QuestionAn isotope of yttrium has 39 protons and 59 neutrons. What is the mass number of that isotope?401views
Open QuestionThe superscript preceding each hydrogen atomic symbol (H) represents which of the following?277views
Open QuestionCan two atoms with the same mass number ever be isotopes of each other? Explain.231views
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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