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