A) Their outer energy levels are completely filled with electrons. B) None of these. C) They have empty outer energy levels. D) They have seven electrons in the outer energy levels. E) They have no electrons.
A) chlorine lithium B) lithium chlorate C) lithium chloride D) None of these. E) chlorine lithiate
A) it will remain neutral because electrons do not affect the charge B) it will have a negative charge C) it will have a positive charge D) it’s weight will increase
A) Ionic, Magnesium chloride B) Covalent, Magnesium chloride C) Ionic, Magneside chlorine D) Covalent, Manganese chloride
A) Na7N11 B) NNa3 C) Na3N D) NaN3
A) Oxygen B) Neon C) Sulfur D) Lead
A) MgO2 B) Mg2O2 C) Mg2O D) MgO
A) an atom with more neutrons than electrons B) an atom that has an different number of protons and electrons. C) None of these. D) an atom with more electrons than neutrons E) an atom with an different number of protons and neutrons
A) 2:1 B) 1:1 C) 0:0 D) 1:2
A) N2O5 B) NOH C) NO D) N3O
A) 79 B) 160 C) 81 D) 2
A) Hydroiodide flourine B) if C) Iodine heptaflouride D) Iodide flouride E) Iodine flourine
A) protons = 12.011 and valence electrons = 6 B) protons = 6 and valence electrons = 12.011 C) protons = 6 and valence elctrons = 4 D) protons = 6 and valence electrons = 6
A) NaSO8 B) Na2SO4 C) Na(SO4)_2 D) NaSO4
A) Benzene B) Chrlorine C) Flourine D) None of these. E) Argon
A) 8 B) 2 C) 4 D) None of these. E) 6
A) covalent B) neither ionic nor covalent C) both ionic and covalent D) None of these. E) ionic
A) alkaline earth metals B) actinides C) bactinides D) halogens E) transition elements
A) sodium dichloride B) chlorine sodiate C) sodium chloride D) None of these. E) sodium chlorate
A) metalloids B) metals C) isotopes D) None of these. E) radioactive
A) Z Ia Y B) Na K Ca C) C N O D) K Ca Sc E) Mg Ca Sr
A) 56 B) 52 C) 30 D) 26 E) None of these.
A) Al2S2 B) Al13S16 C) AlS D) Al2S3 E) None of these.
A) triinary B) ionic C) covalent D) binary E) metallic
A) Mg(NO3)_2 B) MgNO3 C) None of these. D) Mg2NO3 E) Mg2(NO3)_2
A) Na + Cl2 -> Na2Cl2 B) None of these. C) Na + 2Cl2 -> NaCl D) Na + Cl2 -> NaCl2 E) 2Na + Cl2 -> NaCl
A) The equation is already balanced. B) 2FeO + C -> 2Fe + CO2 C) FeO + C -> Fe + CO2 D) FeO + C -> 2Fe + CO2 E) FeO + C -> 3F3 + CO
A) the hydrogen and then the oxygen and then the metals B) the O and H and then everything else C) the metals, then the non-metals (except H and O) and then balance the H and then balance the O D) the non-metals and then the metals E) None of these.
A) Carbon B) Rubidium C) Oxygen D) Argon E) Magnesium
A) None of these B) 12p 11e 11n C) 12p 12e 12n D) 11p 11e 12n E) 11p 12e 11n |