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