Metals
What are elements made of?
Protons, Neutrons, & electrons
What do Lanthanides, & Actinides have in common?
They are both referred to as rare earth metals.
What are Alloys?
Metals that were made by combining two or more metals
Is Boron a non-metal?
Boron is a Metalloid. so, no
What is Neon's Atomic weight?
20.1797
What are some metals?
Gold, Silver, Copper, Zinc, Iron, Mercury etc.
What Colour are the Lanthanide elements?
Silver-Coloured
how much % of the periodic table are metals?
75%
What are some examples of non-metals?
Oxygen, Helium, Chlorine, Carbon, Argon etc.
What is an Atomic number?
The element's place on the periodic table & the number of electrons,& protons that number has.
How many metals are on the periodic table?
About 70 out of the 92 natural elements on the periodic table are metals.
what Element's symbol is HO?
Holmium
What is the 106th Element?
Seaborgium
How many non-metals are there?
18
What does krypton mean?
Krypton, like Kryptos is Greek, meaning the hidden one.
Can we live without metals?
All living Organisms need metals to live, because life on earth is Carbon-based, but Carbon-based life is impossible without metals.
Are Lanthanides soft or hard?
Soft
_________ conducts electricity better than any other metal.
Silver
How many non-metals are there?
22 , 11 gases, 10 solid, 1 liquid
True or False? Noble gases are Colourless, & Odorless?
True
what is the rarest metal on earth?
Francium.
What were the first Actinides discovered?
Uranium, & Thorium.
A lot of jewelry is made from 18 karat gold, which is ____% Gold, & _____% other metals.
75, 25.
What is the rarest element?
Astatine
How many Noble gases are on the periodic table?
6