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