Chemistry

Chemistry, 29.09.2019 13:30, ella3714

All atoms of the same element have different

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Physics, 29.07.2019 14:40, jby

Which statements describe elements? check all that apply. a) atoms of the same element can have different numbers of protons. b) atoms of the same element always have the same number of electrons. c) atoms of the same element can have different numbers of neutrons. d) atoms of the same element always have the same number of neutrons. e) atoms of the same element always have the same number of protons. f) atoms of the same element can be isotopes of that element.

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Chemistry, 19.09.2019 16:20, vorhees2406

25. which one of the following is not one of the postulates of dalton's atomic theory? a) atoms are composed of protons, neutrons, and electrons. b) all atoms of a given element are identical; the atoms of different elements are different and have different properties. c) atoms of an element are not changed into different types of atoms by chemical reactions: atoms are neither created nor destroyed in chemical reactions. d) compounds are formed when atoms of more than one element combine; a given compound always has the same relative number and kind of atoms. e) each element is composed of extremely small particles called atoms.

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Chemistry, 20.09.2019 11:30, cbrewer37

What are the main ideas in dalton's atomic theory? check all that apply. check all that apply. atoms of one element can change into atoms of another element. atoms of one element cannot change into atoms of another element. all atoms of a given element have the same mass and other properties that distinguish them from the atoms of other elements. each element is composed of tiny, indestructible particles called atoms. nuclear particles combine in simple, whole number ratios to form atoms. each atom is composed of elements. atoms combine in simple, whole number ratios to form compounds?

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