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