What is found in the nucleus of an atom?Genetic materialElectrons and neutronsProtons and neutronsProtons and electrons2The atomic number of an atom is the number of:Protons plus neutronsNeutronsProtons plus electronsProtons3The relative atomic mass of an atom is the number of:NeutronsProtons plus electronsProtonsProtons plus neutrons4Referring to the periodic table, calculate how many neutrons are found in sodium (Na):23120115An atom has 12 electrons. Use the periodic table to identify the chemical symbol for this atom:MgCOK
Question
What is found in the nucleus of an atom?Genetic materialElectrons and neutronsProtons and neutronsProtons and electrons2The atomic number of an atom is the number of:Protons plus neutronsNeutronsProtons plus electronsProtons3The relative atomic mass of an atom is the number of:NeutronsProtons plus electronsProtonsProtons plus neutrons4Referring to the periodic table, calculate how many neutrons are found in sodium (Na):23120115An atom has 12 electrons. Use the periodic table to identify the chemical symbol for this atom:MgCOK
Solution
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The nucleus of an atom contains Protons and Neutrons.
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The atomic number of an atom is the number of Protons.
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The relative atomic mass of an atom is the number of Protons plus Neutrons.
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Sodium (Na) has an atomic number of 11 and a relative atomic mass of 23. The number of neutrons is calculated by subtracting the atomic number from the relative atomic mass. So, Sodium has 23 - 11 = 12 neutrons.
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An atom with 12 electrons must have 12 protons (since the number of protons equals the number of electrons in a neutral atom). The element with an atomic number of 12 (which means it has 12 protons) is Magnesium (Mg).
Similar Questions
The atomic number of an atom is the number of:Protons plus electronsNeutronsProtonsProtons plus neutrons3The relative atomic mass of an atom is the number of:Protons plus electronsProtons plus neutronsProtonsNeutrons4Referring to the periodic table, calculate how many neutrons are found in sodium (Na):23011125An atom has 12 electrons. Use the periodic table to identify the chemical symbol for this atom:CMgKO
Use the periodic table and complete the following information todetermine the number of protons, neutrons and electrons andto know the identity of an atom
Almost all of an atom's mass is found in its nucleus, located in the center of the atom. An atom's nucleus can contain two types of particles: protons and neutrons.The nucleus of every atom contains one or more protons. Each proton has a positive electrical charge.In many atoms, the nucleus also contains neutrons. A neutron has no electrical charge.Determine whether each statement is true or false to complete the table.TrueFalseMost of an atom's mass is found in protons and neutrons.The nucleus of an atom is found in the atom's center.A neutron has a positive electrical charge.The nucleus of an atom contains at least one proton.Submit
An atom's atomic number is determined by the number of(1 Point)protons in its nucleusnucleons in its nucleuselectrons in its nucleusneutrons in its nucleus
The ______________ contains protons and neutrons in an atom
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