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