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