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