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