Chemistry

Chemistry, 01.08.2019 12:30, austin856

Acopper (cu) atom has 29 neutrons, 29 protons, and 29 electrons. what is the overall charge of the copper atom?

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Biology, 07.07.2019 11:30, travashouston4873

1)if a boron atom has 5 protons, 6 neutrons, and 5 electrons, it has a mass of a)11 b)10 c)6 2)the atomic number of an atom is the total number of in the nucleus. a)protons and electrons b)protons c)neutrons 3)a lithium atom has 3 protons, 3 neutrons, and 3 electrons. which of the following sets of particles represents and isotope of this atom? a)4 protons, 3 neutrons, and 4 electrons b)3 protons, 4 neutrons, and 3 electrons c)4 protons, 4 neutrons, and 4 electrons

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Chemistry, 28.07.2019 03:50, manco6

5questions to answer 1) electrons are transferred in the formation of bonds. a) ionic b) covalent c) metallic d) all chemical 2) which pair below describes isotopes of the same element? a) an atom with 6 protons and 8 neutrons - an atom with 8 protons and 6 neutrons b) an atom with 6 protons and 6 neutrons - an atom with 6 protons and 7 neutrons c) an atom with 8 protons and 8 neutrons - an atom with 7 protons and 8 neutrons d) an atom with 7 protons and 6 neutrons - an atom with 6 protons and 6 neutrons 3) describe the composition of the nucleus of an atom. a) it is composed of protons. b) it is composed of protons and neutrons. c) it is composed of protons and electrons. d) it is composed of protons, neutrons, and electrons. 4) reactant → product if there are 4 grams of reactant, how many grams of product are produced by the chemical reaction? a) 0 grams b) 2 grams c) 4 grams d) 8 grams 5) 2na + cl2 → 2nacl sodium and chlorine combine to form table salt. given the chemical reaction, how many grams of 2na + cl2 would be required to produce 4 grams of table salt? a) 2 grams b) 3 grams c) 4 grams d) 8 grams

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Chemistry, 15.10.2019 22:20, sethhdoty

Use the table below for the next four questions. ion [a.] symbol cu+1 atomicnumber 29 massnumber [b.] protons [c.] neutrons 34 electrons [d.] hints: if an ion has a + charge, that indicates it has more protons (+) than electrons this means the atom has lost electrons. if an ion has a - charge, that indicates it has more electrons than protons (+). this means the atom has gained electrons. [a] corresponds with: a. copper b. cerium c. chromium d. copernicium [b] corresponds with: a. 58.933 b. 54.938 c. 63.546 d. none of the above [c] corresponds with: a. 28 b. 30 c. 32 d. none of the above [d] corresponds with: a. 28 b. 29 c. 30 d. none of the above

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Chemistry, 19.10.2019 18:30, randyg0531

The atom is the basic unit in chemistry. an atom contains neutrons, protons, and electrons. neutrons are neutral, protons have a positive charge, and electrons have a negative charge. most of the time, atoms are neutrally charged, meaning that they have the same number of protons and electrons. sometimes, though, atoms lose or gain one or more electrons, and become positively or negatively charged. a positively or negatively charged atom is called an ion. an ion with more protons than electrons is positively charged. an ion with more electrons than protons is negatively charged. one common ion is a sodium ion, which has a charge of +1. which of the following statements is true? the ion has more protons than electrons. the ion has the same number of protons and electrons. the ion has more electrons than protons.

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Acopper (cu) atom has 29 neutrons, 29 protons, and 29 electrons. what is the overall charge of the c...

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