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