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