A) 50 B) 60 C) 51 D) 23
A) 3 B) 7 C) 17 D) 1
A) 9 B) 45 C) 5 D) 103
A) 3 B) 15 C) 4 D) 33
A) Noble Gases B) Transition Metals C) Alkali Metals D) Halogens E) Alkaline Earth Metals
A) 2 B) 14.007 C) 14 D) 7
A) 56 B) 137 C) 6 D) 2
A) 7 B) 1 C) 6 D) 2
A) Tellurium is a solid metalloid. B) Phosphorus is a non-metal gas. C) Mercury is a solid metal. D) Chlorine is a liquid non-metal.
A) 5 B) 6 C) 42 D) 96
A) 3 B) 2 C) 4 D) 7
A) proton/-, electron/+, neutron/no charge B) proton/+, neutron/-, electron/no charge C) proton/+, electron/neutral, neutron/- D) proton/+, electron/-, neutron/uncharged
A) protons and neutrons B) protons and electrons C) protons and orbits D) neutrons and electrons
A) Mercury and Thallium B) Phosphorus and Silicon C) Carbon and Boron D) Argon and Krypton
A) electrons orbit totally randomly around the nucleus B) the atom is mostly empty space C) atoms are tiny solid spheres D) the atom is a positively charged sphere with electrons embedded in it
A) nucleus B) group C) period D) region
A) Chlorine B) Magnesium C) Lithium D) Beryllium
A) number of neutrons B) period number C) group number D) number of protons
A) the mass number minus the atomic number B) the same as the number of energy levels C) the same as the number of electrons D) greater than the mass number
A) Period Number B) Group Number C) Number of Neutrons D) State of Matter
A) Francium B) Manganese C) Nitrogen D) Carbon
A) Yes, some Carbon atoms have 6 protons, some have 7 protons. B) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity.
A) by adding electrons B) by losing protons C) by adding protons D) By adding or losing electrons
A) by adding protons B) by adding electrons C) by losing protons D) by losing electrons
A) by losing protons B) by adding protons C) by losing electrons D) by adding electrons
A) by adding protons B) by adding or losing neutrons C) by adding electrons D) by adding neutrons
A) mass number divided by 2 B) same as the atomic number C) same as the mass number D) difference between the atomic and mass number
A) the same as the atomic number B) the same as the number of neutrons C) the same as the mass number D) the difference between the mass and atomic number
A) Mg and F B) Hg and C C) Na and Li D) B and O
A) Ba and Ra B) F and At C) Mg and Cl D) Li and Po
A) The alkali earth metals B) The transition metals C) The alkali metals D) The halogens E) The noble gases
A) The noble gases B) The transition metals C) The halogens D) The alkali metals
A) 4 B) 8 C) 18 D) 17 E) 1
A) how many protons there are B) how reactive they are C) how many electron levels there are D) how many electrons there are
A) the number of neutrons B) the number of protons C) how many valence electrons the atom has D) how many electrons the atom has
A) Sodium B) Iron C) Fluorine D) Silver E) Mercury
A) Al B) H C) Au D) F E) Li
A) Mg B) Cs C) I D) Li E) Al
A) the number of neutrons B) the number of protons C) the number of electrons
A) Mendeleev B) Newton C) Dalton D) Lewis E) Bohr |