An atom has an atomic number of 8 and a mass number of 17. How many protons, neutrons, and electrons does it have? What are isotopes and how do they relate to atomic number and mass number? Why is the average atomic mass for an element typically not a whole number?
- The third shell has 7 electrons. - Therefore, the total number of electrons is calculated as: 2+8+7=17 electrons 3. Determine Atomic Number: - For a neutral atom, the number of electrons is equal to the number of protons. - Thus, the atomic number, which is the number of prot...
An atom that has more protons than electrons is called a cation. Ions are charged atoms or combinations of atoms. When an atom loses one or more...Become a member and unlock all Study Answers Try it risk-free for 30 days Try it risk-free Ask a question Our experts can answer your...
What element has 10 electrons?Atomic Number:Each known chemical element listed on the periodic table of elements has an atomic number. The atomic number is equal to the number of protons that are present in one atom of that element.Answer and Explanation: ...
What changes when an ion is made from an atom?A:the number of electrons onlyB:the number of neutrons onlyC:the number of protons onlyD:the number both of protons and of neutrons 相关知识点: 试题来源: 解析 A 考查实际运用。A. 仅电子数量(变化),B. 仅中子数量(变化),C. 仅质子数量(变化...
The atomic number of an atom is equal to the number of protons found in the atom's nucleus. The mass number of an atom is the total number of protons and neutrons in the nucleus of the atom. Thus, the atomic number is also a contributing factor in the ...
Since an atom contains equal number of protons and electrons, it has no overall charge: the positive charges on all the protons are exactly balanced by the negative charges on all the electrons. But sometimes an atom can gain or lose an electron to become what's called an ion. If it ...
of the mass of a single carbon-12 atom, at rest. The protons and neutrons of the nucleus account for nearly all of the total mass of atoms, with electrons and nuclear binding energy making minor contributions. Thus, the numeric value of the atomic mass w...
View Solution In a hydrogen atom, a Bohr's orbit has diameter of about 4. 232A. What is the maximum number of electrons that can be accommodated in the given shell? View Solution What is the maximum number of electrons that can go into the N shell of an atom ? View Solution ...
Keith Cooper is a freelance science journalist and editor in the United Kingdom, and has a degree in physics and astrophysics from the University of Manchester. So how does nature build an atom? The basic picture is of a nucleus containing protons and neutrons surrounded by electrons that orbit...