Periodic Specificities
What is the last element on the periodic table?
Oganesson
What is a valence level?
It tells the amount of electrons in its outermost level.
What is the name of the 7 elements that have properties of both metals and nonmetals?
What is a use for some of the Alkali Metals?
Salt, batteries, cheap atomic clocks
At what atomic mass do the elements start being man-made?
93 (Neptunium)
What is a cation?
a positively charged ion
What element family has multiple oxidation numbers/the number of electrons an atom wants to give or get.
Transition Metals and the carbon group
What is a use for the Alkaline Earth Metals?
Things that glow
What is the first radioactive element?
Polonium
What is an anion?
A negative ion
What family of metals are rarely found in nature by themselves because they are so reactive??
Alkali Metals
What element has an atomic mass of 238?
Uranium
What are some uses for the Boron/Aluminum Group?
Cooking utensils, ornaments, aircrafts, and rockets
How many liquids are on the periodic table?
2
What are the transition metals oxidation numbers?
+2 or +3
Which family of elements are also known as the rare earth metals and have 6 energy levels?
Lanthanides
What are some uses for the Noble gasses group?
advertising signs, lasers, bombs, refrigerant
What are the 7 metalloids?
boron, silicon, germanium, arsenic, antimony, tellurium, and polonium.
What is the formula for finding the amount of electrons in each level?
2n^2 (^=exponent)
Which element family's name means salt former because they react so easily with the alkali metals?
Halogens
What element is a solid named after a state with 153 neutrons?
Californium
What are some uses for the Nitrogen group?
fertilizers, water softeners, insecticides, medicine, batteries