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