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