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