Alchemy to Atoms Flashcards
What are all things made of?
Atoms
What’s an element?
Substance made of one type of atom
What’s a periodic table?
Table of all elements we know of
Around how many atoms are there?
Around 100 atoms
What do all elements have in common?
They all have a chemical symbol
True or false, two letter symbols have a small 2nd letter
True
What are vertical columns called?
Groups
What are horizontal rows called?
Periods
Most elements are solid at room temperature, but what are the two types of atoms that are different?
Liquids + gases
Do elements in the same group have similar or different properties?
Similar
True or false, all elements are non-metals
False
Which colours are the left and right side, and what do they mean?
Metals left, pink. Non-metals right, green
Describe most metals
Grey, shiny, malleable
What do all metals conduct?
Electricity + heat
All metals except for which one don’t conduct electricity?
Carbon
What is the meaning of compound?
Two or more atoms joined together
What is the meaning of mixture?
Made of 2 or more atoms, not joined
Name all Alakai metals
Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Caesium (Cs), Francium (Fr)
What are low melting and boiling points?
Soft, can be cut with a knife, floats on water, highly reactive
What are all the Halogens
Fluorine F, Chlorine Cl, Bromine Br, Iodine I, Astatine At
What are all the uses of the halogens?
Fluorine - toothpaste
Chlorine - disinfectant
Bromine - Photos
Iodine - cancer treatment
