okmarks Window Help ezto.mheducation.com the d or phrase that will Select the ke

Question

okmarks Window Help ezto.mheducation.com the d or phrase that will Select the keyword or phrase that will best complete each sentence. Key terms is a column in the periodic table. atomic unpaired weight The symbolized as is number of protons in the nucelus of an atom and is atomic mass unit valence period group Electrons in the outermost shell that takes part in bonding and chemical reactions are referred to as electrons. neutron mass number The pos tively charged subatomic particle( subatomic particle) are found in the nucleus of the atom. ) and the Anequals one-twelfth the mass of a carbon-12 atom equivalent to 1.661 x 10-24g proton atomic

Explanation / Answer

A group is a column in the periodic table, The atomic number is the number of protons in the nucleus of an atom and is symbolized as Z Electrons in the outermost shell that takes part in bonding and chemical reactions are referred to as valence electrons. The positively charged subatomic particle protons and the uncharged subatomic particle neutron are found in the nucleus of the atom. An atomic mass unit equals one-twelfth the mass of a carbon-12 atom and is equivalent to 1.661 x 10-24 g

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