Fichas

Unit 1 Chemistry Test

Greta Neal Chemistry 11th grade Inglés 37 fichas

Fichas del conjunto (37)

1Fusionfusing together, put together, 2 or more nuclei collide at very high energy and fuse together
2Fissionsplitting apart, neutron slams into a larger atom, forcing it to excite and split into two smaller atoms
3Supernovathe brilliant explosion of a dying supergiant star
4Big bang created...... hydrogen & helium
5Supernova creates...... elements past iron
6Small stars make...... carbon, nitrogen & oxygen
7Big stars make...... up to iron
8Particulateitty bitty, can't see even with microscope
9MacroscopicBig, can see
10Microscopicsmall, can see with microscope
11Gasindependent of one another, random movement
12Liquidparticles move freely, but clump
13Solidparticles vibrate in fixed positions
14Key players in atomic modelDalton, J.J. Thomson, Rutherford, Bohr, Schrodinger
15Isotopedifferent variation of the same element, the mass can vary due to neutrons
16Chargenumber of protons + electrons. More protons = positive. More electrons = negative.
17Iondifferent amount of protons and electrons = has a charge
18Protonpositive, tells you the element
19Mass NumberProtons + neutrons
20Atomic Numbernumber of protons = tells you the element
21Neutronsubatomic particle in nucleus, stability, no charge, neutral, positive and negative cancels out
22Electronnegative subatomic particle, weighs 0
23Atomic number stands for...... how many protons the atom has
24Atomic symbol is...... letter that stands for which atom it is
25atomic weight refers to...... protons added to neutrons
26Bohr Models
27Electron configurationdistribution of electrons of an atom or molecule in atomic or molecular orbitals
28Atomic radius
29Ionization energyenergy it takes to remove or add electrons from an atom
30Electronegativitychemical property that describes the tendency of an atom or functional group to attract electrons towards itself
31Valence electronselectron in the outer shell associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed
32Why would an element want to gain electrons?To completely fill the outer ring (8).
33Why would an element want to lose electrons?If there is an outer ring with only 1 electron, and the ring previous is full, it would want to lose it to have a full outer shell.
34A group is...... up and down
35A period is...... left and right
36Why does radius increase as you go down the periodic table?There is an addition of rings
37Why does ionization energy increase as you go across the rows?If all rings are filled, they keep all their electrons, higher energy and hold on electrons