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