bonds
what bonds does a non - metal and a metal have?
ionic bond
what is the formula to find magnification
Magnification=image/real size
what does the nucleus contain?
genetic material
cells
what is a covalent bond?
a covalent bond is where two non metals share electrons.
what is the formula to find power in physics?
Power=energy/time
makes proteins
How does silver metallically bond
it bonds by having positive ions in a sea of delocalized electrons.
What group is oxygen in?
why do ionic bonds have high melting and high boiling points?
How do you calculate the relative formula mass
add up all of the relative atomic masses in the formula, and times them by how many of that element they are, then add that up. EX: H2O, Hydrogen = 1x2
Oxygen = 16 x 1| 2 +16= 18
what is the formula to calculate GPE
GPE = mgh; gravitational potential energy = mass x gravitational field strength x height
why do covalent bonds have low boiling and melting points?
weak intermolecular forces
What is the formula for relative atomic mass
Ar = Isotope mass * isotope abundance/100
What eukaryotic cells contain a cell wall ?
how is the nuclear model different from the plum pudding model
1. it contains a nucleus
2. all the mass is in the middle
3. it contains protons, not positive charge
4. the electrons are in a fixed position outside of the nucleus.
5. mostly empty space in the nuclear model