Chemistry

Chemistry, 27.07.2019 15:00, Officaljazz18

Acertain atom has 26 protons 26 electrons and 30 neutrons. its mass number is

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Chemistry, 24.06.2019 21:30, Hrjohnson2004

1. an isotope is an atom of an element that differs in its number of a. protons b. neutrons c. eletrons 2. what determines what element an atom is? a. the number of protons and neutron in an atom b. the number of electrons in the atom c. the number of neutrons in the atom d. the number of protons in the atom 3. which of the following contributes to the mass number? a. number of protons and neutrons b. number of protons only c. number of neutrons and electrons d. number of protons and electrons

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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, 02.09.2019 14:10, COOLIOMARIS

match the correct term with the definition question 1 options: the neutrally charged element in the nucleus of an atom the number of protons an atom has an atom of an element that has a different number of neutrons that the standard atom of that element protons + neutrons in the nucleus of an atom the positive particle in the nucleus of an atom 1. atomic mass 2. neutron 3. atomic number 4. proton 5. isotope identify the atomic number and atomic mass of the following element question 2 options: number: 35.453 mass: 17 number: 17 mass: 18 number: 18 mass: 17 number: 17 mass: 35.453 which atomic particle gives an atom gives it it’s chemical properties? question 3 options: protons isotopes neutrons electrons all atoms of an element always have the same number of question 4 options: neutrons electrons protons electrons how many protons, neutrons, and electrons does a neutral atom of this element have? (round atomic mass to nearest whole number) question 5 options: protons: 13 neutrons: 13 electrons: 13 protons: 13 neutrons: 14 electrons: 13 protons: 27 neutrons: 13 electrons: 14 protons: 14 neutrons: 27 electrons: 13 a neutral atom of an element has the same number of and question 6 options: protons and electrons neutrons and electrons protons and neutrons which of the following is are isotopes of carbon? (carbon has an atomic number of 6 and an atomic mass of 12) question 7 options: only b is an isotope a and c are isotopes a and b are isotopes b and c are isotopes

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Biology, 23.09.2019 19:00, sheila101

Acertain atom of oxygen contains 8 protons, 8 neutrons, and 8 electrons. another atom of unknown identity contains 9 protons. which of the following must be true about this unidentified atom? a. it is an isotope of oxygen b. its atomic mass is a decimal number c. it has 9 neutrons in its nucleus d. it cannot be an atom of oxygen

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Acertain atom has 26 protons 26 electrons and 30 neutrons. its mass number is...

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