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