A nucleus with an atomic number of 10 and a mass number of 22 must haveGroup of answer choices10 protons.22 nucleons.12 neutrons.All choices are true.Next

The atomic number of an element matches the number ofGroup of answer choicesprotons in the nucleus of an atom.electrons in an ion of the same atom.neutrons in the nucleus.nucleons in the nucleus.

1.The number of nucleons in the nucleus of an atom is called its

What do all atoms of potassium have in common?Group of answer choicesThey all have 19 protonsThey all have 20 neutronsThey all have a mass number of 39 Flag question: Question 2Question 21 ptsThe atomic number of an element is always the same as the number of what particle in its atoms' nuclei?Group of answer choicesprotonsneutronselectronsisotopes Flag question: Question 3Question 31 ptsHow many protons are in an atom of carbon-14 Download carbon-14?Group of answer choices682014 Flag question: Question 4Question 41 ptsIn the nuclide symbol for potassium-39 Download potassium-39, what does 19 represent?Group of answer choicesnumber of protons and neutrons added togethernumber of neutronsmass numbernumber of protons Flag question: Question 5Question 51 ptsIn the nuclide symbol Download symbolfor potassium-39, what does the 39 stand for?Group of answer choicesnumber of protons and neutrons added togethernumber of protonsatomic numbernumber of neutrons Flag question: Question 6Question 61 ptsWhat is the mass number of carbon-14 Download carbon-14?Group of answer choices682014 Flag question: Question 7Question 71 ptsWhat is the name for atoms of the same element with different numbers of neutrons?Group of answer choicesprotonsnucleineutronsisotopes Flag question: Question 8Question 81 ptsWhat can be calculated by adding the number of protons and neutrons in an atom's nucleus?Group of answer choicesatomic numbermass numbernumber of protonsnumber of isotopes Flag question: Question 9Question 91 ptsWhich particle in the nucleus can be different for atoms of the same element?Group of answer choicesprotonsneutronselectronsisotopes Flag question: Question 10Question 101 ptsHow do the nuclear reactions that power the Sun compare to the nuclear reactions that occur in a reactor at a nuclear power plant?Group of answer choicesThe Sun is powered via nuclear fusion while a nuclear power facility harnesses energy from nuclear fission.The Sun is powered via nuclear fission while a nuclear power facility harnesses energy from nuclear fusion.Both the Sun and a nuclear power facility are powered by nuclear fusion reactions.Both the Sun and a nuclear power facility are powered by nuclear fission reactions. Flag question: Question 11Question 111 ptsWhich occurs in a fission reaction?  Group of answer choicesEnergy is absorbed as a less stable element forms.A new heavier element is formed and energy is released.Energy is converted into mass and forms a heavier element.The nuclei of atoms are split apart and energy is released. Flag question: Question 12Question 121 ptsOne kilogram of uranium can produce as much energy as 16,000 kilograms of coal. Why is the energy output for uranium so much greater than the energy output for coal?Group of answer choicesUranium is more highly purified than coal.Uranium is a highly reactive metal that reacts violently with oxygen when it burns.Uranium undergoes fission and nuclear reactions give off more energy than chemical reactions.Uranium is extremely radioactive and gives off more electromagnetic radiation than burning coal. Flag question: Question 13Question 131 ptsWhich occurs in a fusion reaction between two atoms?Group of answer choicesEnergy is absorbed as a less stable element forms.A new element is formed and energy is released.Energy is converted into mass and forms a heavier element.The nuclei of the atoms are split apart and energy is released. Flag question: Question 14Question 141 ptsIn what way are nuclear fission and nuclear fusion similar?Group of answer choicesBoth processes involve the decay of nuclei of atoms.Both processes result in formation of one or more new elements.Both processes are currently used to generate electrical energy.Both processes occur naturally inside the core of a star. Flag question: Question 15Question 151 ptsWhat type of nuclear reaction is shown in the equation Download equation?Group of answer choicesnuclear fissionnuclear fusionalpha decaybeta decay Flag question: Question 16Question 161 ptsWhat type of nuclear reaction is shown in the equation Download equation?Group of answer choicesnuclear fissionnuclear fusionalpha decaybeta decay

7. Any of the two or more atoms of the same element that have different numbers of neutrons. _______________

An atom has a mass number of 9 and 5 neutrons. What is its atomic number?A.11B.14C.4D.19SUBMITarrow_backPREVIOUS