The table below gives the numbers of protons, electrons, and neutrons in four atoms.AtomNumber of protonsNumber of neutronsNumber of electrons198929983991049109Based on the table, which atom has a charge of –1?
What is the charge on an electron?
An atom of element Be has four protons, four electrons, and five neutrons. Which element below could be an isotope of this atom?
Carbon-12 and carbon-13 are isotopes of carbon. Which of the following statements is correct?
Which two particles are found in the nucleus of an atom?
A scientist uses an accelerator and high energy electrons to study the particles inside the protons of a helium atom. What particles is the scientist studying?
The mass number of Fe2+ is 56. How many neutrons are there in a single Fe2+ atom?
Which element has 16 protons in its nucleus?
An atom contains one proton, one electron, and one neutron. Which two particles are most similar in mass?
Which statement describes an electron?
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