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A: Atom is the smallest or basic unit of matter and was discovered by sir John Dalton in 1808 Charge…
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neutrons and electrons
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b. |
protons and electrons
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c. |
protons only
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d. |
neutrons and protons
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e. |
neutrons only
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- An isotope of sodium (Na) has a mass number of 22. How many neutrons does it have? a. 11 b. 12 c. 22 d. 44The smallest particle of an element that still has the chemical characteristics of that element is a(n)a. electron. c. neutron. e. atom.b. molecule. d. proton.The name given to the atomic particle found outside the nucleus of an atom isa. proton.b. neutron.c. electron.d. ion.
- Which of the following levels in the shell model of an atom can hold up to two electrons? A. The second shell B. The first shell C. The third shellAtoms of the same element that differ only in the number of neutrons are known asThe property that distinguishes an atom of one element (carbon, for example) from an atom of another element(oxygen, for example) isa. the number of electrons.b. the number of protons.c. the number of neutrons.d. the combined number of protons and neutrons.
- What is a proton? A. A negatively charged particle B. A positively charged particle C. An element on the periodic table D. Any particle found in the nucleusThe atomic number gives thea. number of neutrons in the nucleus.b. number of protons in the nucleus.c. weight of the atom.d. number of protons in the valence shell.44.All atoms of a given element have the same ________. Group of answer choices a.mass number b.number of nucleons c.atomic mass d.number of neutrons e.atomic number
- Atoms are incredibly tiny, so small that most microscopes can't even see them, but atoms themselves are made of even smaller particles: protons, neutrons, and electrons. Which of the following describes where protons are located in an atom? A. A shell B. The nucleus C. Both the nucleus and a shellDefine the following terms: a. dipole b. hydrogen bond c. electrostatic interaction d. covalent bond e. hydrationAll ions have at least one ________ (select all that arecorrect).a. proton c. electronb. neutron d. all of the above