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