Atomic Number
Hydrogen is a:
a. metal
b. metalloid
c. nonmetal
c. nonmetal
What is the isotope name of an atom with 11 protons and 12 neutrons
sodium-23
Cation
What is the name, atomic number, average atomic mass, and number of total electrons for the element with 5 valence electrons located in period 6 of the periodic table?
Bismuth (Bi)
Atomic Number: 83
Avg. Atomic Mass: 208.980 amu
83 total electrons
Ion
Arsenic is a
a. metal
b. metalloid
c. nonmetal
b. metalloid
How many neutrons does Chlorine-37 have?
20 neutrons
Negatively Charge ion
Total number of protons + neutrons in 1 atom of an element
What group and period is Potassium in?
Alkali Metals, Period 4
What is the name of the isotope with 26 protons and 30 neutrons
Iron-56
How many valence electrons do atoms want to have?
0 ve or 8 ve
Different versions of an element dependent on the number of neutrons it has in its atoms
Isotope
What group name and period is Iridium in on the periodic table?
Transition metals (9) and period 6
How many neutrons and protons does Osmium-190 have?
114 neutrons and 76 protons
A neutral atom of Bromine has how many valence electrons? An ion of Bromine has a net charge of?
7 v.e.
-1
What is the average weight of all the masses of an element's isotopes called? (the decimal number assigned to each element on the periodic table)
Average atomic mass (amu)
This element is a metalloid in period 2 of the periodic table
Boron (B)
How many protons, neutrons and electrons does a neutral atom of Cesium-133 have?
55 protons, 78 neutrons, 55 electrons
0 v.e.
+2