chemistry partial 2

Question 0

Rutherford’s model and how did he get it?

Answer 0

Small nucleus with electrons surrounding it all in a sphere of positive ness and by alpha rays that are the nucleus of a helium atom that had to do with radioactive elements.

Question 1

Thomson’s model, how did he get it?

Answer 1

Electrons in a cloud of positive ness. By cathode rays.

Question 2

What is an isotope?

Answer 2

Atoms of the same element but with different neutrons

Question 3

Frequency

Answer 3

How many waves there are in a certain period of time

Question 4

Bohr’s model and how

Answer 4

Orbitals!!

And electrifying gases and getting their electromagnetic spectrum.

Question 5

Orbital

Answer 5

A region of space most likely to find an orbital

Question 6

Paulo’s principle

Answer 6

You have to fill the orbitals before going to the next one

Question 7

Aufbau principle

Answer 7

The worm :3 where you have to fill the energy levels and shells in order

Question 8

Configurations

Answer 8

Electronic- arrows
Orbital- exponential
Noble gas- gas and whatever

Question 9

Amu

Answer 9

Atomic mass unit

1/12 of a 12 carbon atom

Question 10

Atomic radius

Answer 10

Size of an atom

Question 11

Ionization energy

Answer 11

Energy required to remove electrons

Question 12

Electronegativity

Answer 12

Energy that attracts electrons or energy needed to add electrons

Question 13

How are stars formed?

Answer 13

Through nuclei synthesis (fission)

Question 14

Transmutation

Answer 14

Change of an elements nucleus into another element by fission

Question 15

Particle accelerator

Answer 15

Accelerate a nucleus through a magnetic field up to .9 c

Question 16

Transyranium

Answer 16

An element heavier than uranium up to 102

Question 17

Super heavy elements

Answer 17

They have a nucleus so heavy that it only last for a few seconds elements starting with 103 and on

Question 18

Cyclotron and synchro cyclotron

Answer 18

They needed each time less
.999 c and limited
Better design voltage even if they gained mass, elements 102 and forth

Question 19

Amu

Answer 19

Atomic mass unit
1/12 of a carbon 12 atom
Portions and neutrons are approximately 1 amu
1.67*10–27

Question 20

Weighed average

Answer 20

When isotopes are mixed

You multiply their atomic mass times the percentage there is of that isotope and you add them up

Question 21

Nuclear change

Answer 21

Fission( you have a big and small nuclei and the small makes the big one split and make a chain reaction, from big nuclei to small)
Fusion ( from small nuclei to big, ex sun)
Radioactive decay( not so dramatic, nuclear changes in unstable nuclei alpha : turn into another nucleus and release a small nucleus, and beta: releases exited electron because a neutron baca me a proton or vice versa, alpha is most common

Question 22

Radioactive isotopes

Answer 22

From nuclear change from a decay
Boron-10 concentrates in eliminating cancer cells
Carbon-14 for knowing how long someone has been dead
Iodine-131 to test for thyroid activity
Nitrogen-15 determining how much water a plant is absorbing
Chlorine-36
Measure sources of chloride and the age of water up to two million years

Question 23

Electronic configuration and orbital notation

Answer 23

With exponents

With arrows