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