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: ...
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...
2. Calculate Total Electrons: - The first shell can hold 2 electrons. - The second shell can hold 8 electrons. - 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...
An atom has an atomic number of 12 and a mass number of 25. how many neutrons does the atom have? If an atom with a mass number of 202 has 122 neutrons, it is an atom of which element? What is the atomic number of an atom that has 6 protons, 6 ...
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...
A Magnesium Ion typically refers to Mg^2+, formed by losing two electrons. In Magnesium chloride, each Magnesium atom forms a Mg^2+ ion. 11 Magnesium Atom The atomic number of a Magnesium Atom is 12. A Magnesium atom has 12 protons in its nucleus. 11 Magnesium Ion Often found in ionic...
An element has electronic configuration 2, 8, 3. What is the atomic number of the element ? To which (i) group and (ii) period does this element belong ? View Solution An element has 2 electrons in the M shell. What is the atomic number of the element ?
because of the presence of both the K and L shells. For example, lithium and neon contain both K and L shells. A lithium atom has only three electrons, two in the K shell and one in the L shell, but a neon atom has 10 electrons, two in the K shell and eight in the L shell....
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 ...
She has 20 years of teaching experience in public, private, and informal educational settings. Cite this lesson Learn about atoms, the fundamental unit of matter in the universe. Discover the different parts of an atom, such as the nucleus, proton, neutron, and electrons. Also, explore atomic...