Multiple ChoiceWhich of the following answers give the correct number of subatomic particles for ?1368views19rank
Multiple ChoiceWhich of the following answers give the correct number of subatomic particles for ?1214views16rank
Open QuestionWhich of these refers to atoms with the same atomic number but different atomic masses?246views
Open QuestionThe atomic number of fluorine is 9 and its atomic mass is 19. How many neutrons does fluorine have?420views
Open QuestionOne isotope of sodium has 11 protons and 7 neutrons. What is the mass number of this isotope?282views
Open QuestionHow many protons, neutrons, and electrons are there in a neutral atom of 131I (iodine-131)?309views
Open QuestionTwo isotopes of the same element will have the same number of _____ but a different number of ____.252views
Open QuestionHow many protons, neutrons, and electrons are there in a neutral atom of 30P (phosphorus-30)?238views
Open QuestionAn isotope of yttrium has 39 protons and 59 neutrons. What is the mass number of that isotope?372views
Open QuestionThe superscript preceding each hydrogen atomic symbol (H) represents which of the following?270views
Open QuestionCan two atoms with the same mass number ever be isotopes of each other? Explain.224views
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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