A) 51 B) 23 C) 60 D) 50
A) 3 B) 7 C) 17 D) 1
A) 9 B) 5 C) 45 D) 103
A) 33 B) 4 C) 3 D) 15
A) Halogens B) Alkaline Earth Metals C) Noble Gases D) Transition Metals E) Alkali Metals
A) 2 B) 14.007 C) 7 D) 14
A) 6 B) 2 C) 137 D) 56
A) 1 B) 2 C) 7 D) 6
A) Phosphorus is a non-metal gas. B) Mercury is a solid metal. C) Tellurium is a solid metalloid. D) Chlorine is a liquid non-metal.
A) 42 B) 96 C) 6 D) 5
A) 2 B) 7 C) 4 D) 3
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) neutrons 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) atoms are tiny solid spheres B) the atom is a positively charged sphere with electrons embedded in it C) electrons orbit totally randomly around the nucleus D) the atom is mostly empty space
A) nucleus B) group C) period D) region
A) Lithium B) Chlorine C) Beryllium D) Magnesium
A) period number B) group number C) number of neutrons D) number of protons
A) the mass number minus the atomic number B) the same as the number of electrons C) greater than the mass number D) the same as the number of energy levels
A) Group Number B) State of Matter C) Number of Neutrons D) Period Number
A) Manganese B) Nitrogen C) Francium D) Carbon
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 protons B) by losing protons C) by adding electrons D) By adding or losing electrons
A) by losing protons B) by adding protons C) by losing electrons D) by adding electrons
A) by adding protons B) by losing protons C) by losing electrons D) by adding electrons
A) by adding protons B) by adding neutrons C) by adding or losing neutrons 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 atomic number B) the same as the mass number C) the difference between the mass and atomic number D) the same as the number of neutrons
A) Na and Li B) B and O C) Mg and F D) Hg and C
A) F and At B) Mg and Cl C) Li and Po D) Ba and Ra
A) The noble gases B) The alkali metals C) The halogens D) The transition metals E) The alkali earth metals
A) The transition metals B) The noble gases C) The alkali metals D) The halogens
A) 17 B) 8 C) 4 D) 18 E) 1
A) how many electron levels there are B) how reactive they are C) how many protons there are D) how many electrons 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) Fluorine B) Sodium C) Mercury D) Iron E) Silver
A) Au B) Li C) Al D) H E) F
A) Mg B) Li C) Al D) Cs E) I
A) the number of electrons B) the number of protons C) the number of neutrons
A) Lewis B) Mendeleev C) Bohr D) Dalton E) Newton |