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All ions have at least one ________ (select all that are
correct).
a. proton c. electron
b. neutron d. all of the above
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- The 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.Which statement is true of all atoms that are anions?(A) The atom has more electrons than protons.(B) The atom has more protons than electrons.(C) The atom has fewer protons than does a neutral atomof the same element.(D) The atom has more neutrons than protons.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 shell
- The nucleus of an atom contains: a. neutrons and electrons b. protons and electrons c. protons only d. neutrons and protons e. neutrons onlyWhat atom has only one proton? a. hydrogen c. a free radical b. an isotope d. a radioisotopeAll ions have at least one ________ select all that are correct. a. proton c. electron b. neutron d. all of the above
- A salt does not release ______ in water. a. ions b. H+What is an alloy? A. A compound of two metals B. An element of two metals C. A mixture of two metals D. A molecule of two metalsWhich of the following statements is incorrect? a. Isotopes have the same atomic number and different mass numbers. b. Atoms have about the same number of electrons as protons. c. All molecules consist of atoms. d. Free radicals are dangerous because they emit energy
- 1.1. An atom of element X has an atomic number of 14 and a mass number of 30. Which of the following statements is correct? (A) An atom of sodium has 14 protons, 14 electrons, and 14 neutrons.(B) An atom of sodium has 14 protons, 16 electrons, and 14 neutrons(C) An atom of sodium has 14 protons, 14 electrons, and 16 neutrons.(D) An atom of sodium has 14 protons, 16 electrons, and 16 neutrons.1.2. The ability of carbon to form four covalent bonds with a variety of atoms is(A) Isomerism(B) Tetravalence(C) Hydrolysis(D) Quadravalence1.3. Water resists changing its temperature because of its … (A) High heat of vaporization(B) Low specific heat(C) High specific heat(D) Low heat of vaporization1.4. A solution where [H+] < [OH−] is more:(A) Acidic(B) Basic(C) Neutral(D) None of the above1.5. Malnourishment results when there is(A) A diet that does not provide enough fatty acids(B) A diet with short-term absence of one or more essential nutrients(C) A diet that does not provide enough…Iodine has 37 known isotopes. Therefore, the atomic mass has a range of 108-144 amu. Which of the following statements concerning iodine is correct? A) The isotopes of iodine have between 55 and 91 protons. B) An atom of iodine can have between 55 and 91 neutrons. C) The isotopes of iodine will always have the same number of neutrons, but the protons can vary. D) The isotopes of iodine have between 108 and 144 neutrons, but the number of protons will not vary.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 nucleus
