05:04Nuclide Symbols: Atomic Number, Mass Number, Ions, and IsotopesProfessor Dave Explains1105views1rank
05:53Atomic Number, Atomic Mass, and the Atomic Structure | How to Pass ChemistryMelissa Maribel756views1rank
04:23How to find the Protons Neutrons and Electrons of an element on the Periodic tableMooMooMath and Science1038views
07:41How to find the number of protons, neutrons, and electrons from the periodic tableMichael Ferguson _ Staff - EastMillbrookMS1435views1rank
Multiple ChoiceAccording to the table above, how many electrons are required to produce a charge of –2.0 C?1082views1rank2comments
Multiple ChoiceIf the charge and mass of one proton is 1.60218 x 10-19 C and 1.673 x 10-24 g respectively, what is the charge of 378 kg of protons?880views3rank
Open QuestionRounded to the nearest whole number, how many protons are in an atom of krypton?170views
Open QuestionHow many neutrons are in an atom of copper? Round your answer to the nearest whole number.204views
Open QuestionAn atom of the isotope 133Cs contains how many protons (p), neutrons (n), and electrons (e)?241views
Open QuestionAn aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. Its mass number is ____.557views
Open QuestionThe mass number of an atom is 15 and its atomic number is 7. the atom probably has...244views
Open QuestionWhat is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons?226views
Open QuestionUsing the periodic table, complete the table to describe each atom. Type in your answers.264views
Open QuestionConsider the following table showing symbols, the number of protons, electrons, and neutrons, and the mass number. Each column represents a neutral atom.<IMAGE>Fill in the third column of this table.173views
Open QuestionMercury is in the 80th position in the periodic table. how many protons does it have?179views
Open QuestionWhich subatomic particles contribute to an atom's mass number but not its atomic number?182views
Open QuestionIf an atom has 35 protons in the nucleus, how many electrons will it have orbiting the nucleus?225views
Open QuestionWhat is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons?429views
Open QuestionWhich one of the following statements about atoms and subatomic particles is correct?258views
Open QuestionHow many protons, neutrons, and electrons are there in a neutral atom of 43k (potassium-43)?207views
Open QuestionRounded to the nearest whole number, how many electrons are in an atom of zirconium?193views
Open QuestionAn atom's mass number is 13 and its atomic number is 6. How many neutrons are in its nucleus?239views
Open QuestionHow many protons, neutrons, and electrons are there in a neutral atom of 97Tc (Technetium-97)?153views
Open QuestionWhat is the atomic symbol and mass number for an atom containing 50 protons and 64 neutrons?245views
Open QuestionCarbon has an atomic number of 6. What can you conclude about carbon from this fact?164views
Open QuestionRounded to the nearest whole number, how many neutrons, on average, are in an atom of osmium?196views
Open QuestionIn an electrically neutral atom the number of protons in the nucleus is equal to the number of?172views
Open QuestionThe sum of the number of protons and neutrons in the nucleus of an atom is called the157views
Open QuestionIn which of these cases do we have enough information to say that the atom is electrically neutral?161views
Open QuestionThe atomic number of krypton (Kr) is 36, and its mass number is 84. How many neutrons does it have?581views
Open QuestionThe center of an atom is a dense region consisting of protons and neutrons called the164views
Open QuestionWhich subatomic particle plays the greatest part in determining the properties of an element?168views
Open QuestionRounded to the nearest whole number, how many protons are in an atom of krypton? 36 48 84 120149views
Open QuestionMatch each property to the appropriate subatomic particle. Drag each property into the correct bin.181views
Open QuestionAn uncharged atom has six electrons. the nucleus of this atom must contain _______ protons.151views
Open QuestionRounded to the nearest whole number, how many protons are in an atom of Krypton? 36 48 84 120153views
Open QuestionHow many protons, neutrons, and electrons are there in a neutral atom of 30P (phosphorus-30)?145views
Open QuestionAn uncharged atom has six electrons. The nucleus of this atom must contain _______ protons.137views
Open QuestionFor Al, its atomic number is 13 and its mass number is 27. How many neutrons does it have?210views
Open QuestionWhat is the atomic mass number of carbon-13 (6 protons, 7 neutrons, 6 electrons)?198views
Open QuestionWhat is the mass number for an atom of barium containing 56 protons and 82 neutrons?212views
Open QuestionWhich of the choices is the unique, defining property of atoms of a particular element?166views