General Knowledge #3 Flashcards
What is a positively charged ion?
a cation
- cation has a t in it - which kind of looks like a + sign,
What is a positively charged ion?
a cation
- cation has a t in it - which kind of looks like a + sign,
Where do the electrons go and come from when an atom forms an ion?
They come from other atoms! Electrons are transferred between atoms, forming cations and anions.
These cations and anions come together to form large crystal lattices called ionic compounds.
What is it called when things with opposite electric charges are attracted to each other?
an electrostatic attraction.
What do ionic compounds form?
crystal lattices.
what is a crystal lattice?
a repeated arrangement of ions in 3 dimensions.
what is a technique used to determine the structure of different crystals?
X-ray crystallography
how do scientists analyse the pattern of diffraction produced as the crystal splits the beam into rays?
Scientists fire narrow beams of X-rays at a crystal
what information from analysing the pattern of diffraction produced help scientists?
its chemical structure.
Where do the electrons go and come from when an atom forms an ion?
They come from other atoms! Electrons are transferred between atoms, forming cations and anions.
These cations and anions come together to form large crystal lattices called ionic compounds.
What is it called when things with opposite electric charges are attracted to each other?
an electrostatic attraction.
What do ionic compounds form?
crystal lattices.
what is a crystal lattice?
a repeated arrangement of ions in 3 dimensions.
what is a technique used to determine the structure of different crystals?
X-ray crystallography
how do scientists analyse the pattern of diffraction produced as the crystal splits the beam into rays?
Scientists fire narrow beams of X-rays at a crystal
