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