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