Atomic Structure Flashcards
What does the mass number contain?
Protons and neutrons
What does the atomic number contain?
Number of protons in the nucleus
What is the number of electrons equal too?
The number of protons
What is an isotope?
Versions of elements which have same number of protons but different number of neutrons
What is an element?
One type of atom
What is an atom?
Smallest particle of an element
What is a compound?
Two or more different types of atoms chemically bonded together
What is a mixture?
Two or more substances not chemically bonded
What is a pure substance?
One type of atom with nothing else mixed in
What is a pure substance?
One type of atom with nothing else mixed in
What is another name for group 1?
Alkali metals
What is another name for group 7?
Halogens
What is another name for group 0?
Noble gases
What would number one be on Ph scale
Acid
What would 14 be on the Ph scale?
Alkali
What are properties of transition metals?
Hard, dense, can conduct electricity as liquid or solid, lustrous when freshly cut, high melting point, forms coloured compounds
Why can’t noble gases form compounds?
Stable full outer shell
What is an ion?
A charged particle
What do oppositely charged ions do?
Attract
How do you calculate RF value?
Distance moved by solute
____________________________
Distance moved by solvent
