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