Atom Electron Configuration + Phisiologically Important Isotopes

Question 1

Dalton Atomic Theory 1

Answer 1

Elements are composed of small particles called atoms

Question 2

Dalton Atomic Theory 2

Answer 2

Atoms of given element are identical in size, mass and chemical properties. Atoms of different elements differ from each other

Question 3

Dalton Atomic Theory 3

Answer 3

Compounds are composed of atoms of more then 1 element. The ratio of different atoms of any 2 elements can be presented as an integer or a simple fraction

Question 4

Dalton Atomic Theory 4

Answer 4

Chemical reactions involve separation, combination or rearrangement of atoms. Atoms aren’t created or destroyed

Question 5

Who 1st identified and discovered the electron

Answer 5

Thomson

Question 6

What instrument was used to determine the electric charge to mass ration of an electron

Answer 6

Cathode Ray Tube

Question 7

Matter Charge

Answer 7

Neutral. Equal amounts positive and negative particles

Question 8

Plum Pudding Model Reasoning

Question 9

Plum Pudding Model Description

Answer 9

Positive sphere, electrons embedded randomly throughout

Question 10

Who Designed Plum Pudding Model

Answer 10

Thomson

Question 11

Rutherford Discoveries + Experiment

Answer 11

Nucleus, proton. Gold foil

Question 12

Rutherford’s Conclusion on Nucleus

Answer 12

Small, dense, positive at center of atom

Question 13

Bohr Experiement

Answer 13

Study of Hydrogen Emission Line Spectra

Question 14

Bohr Conclusions

Answer 14

Electrons move in circular orbits around nucleus + orits have specific energy levels

Question 15

Einstein Discovery

Answer 15

Photoelectric Effect - Light has particle properties

Question 16

deBroglie’s Theory (building off Einstein)

Answer 16

Wave-particle duality

Question 17

Heisenberg’s Principle

Answer 17

IT’s impossible to know the position and velocity of an electron

Question 18

Schrodinger’s Equation Purpose

Answer 18

Calculates the probability of finding an electron in a particular position of an atom

Question 18

Atomic Orbitals Definition

Answer 18

Region in space with a high probability of finding an electron

Question 19

Characteristics Differentiating Atomic Orbitals

Answer 19

Size, energy, shape and orientation

Question 20

s-orbital dimensions + shape

Answer 20

3 dimensions + Spherical

Question 21

What does a higher orbital number mean

Answer 21

Higer energy + increased distance from nucleus

Question 22

p-orbital shape + dimensions

Answer 22

dumbbell, 3 dimensions

Question 23

How px, py and pz orbitals differ from eachother (same energy, same shape)

Answer 23

Different orientation

Question 24

D orbital shape

Answer 24

Undefined

Question 25

How many different configurations can a d- orbital have

Answer 25

5 (x^2-y^2, z^2, xy, xz, yz)

Question 26

Energy Sublevel Def.

Answer 26

Group of atomic orbitals of equal energy in an atom

Question 27

2p no. of orbitals + max. electron no.

Answer 27

3, 6

Question 28

Afbau Principle

Answer 28

Electrons fill lowest available energy levels 1st

Question 29

Hund’s Rule

Answer 29

Orbitals of equal energy are filled singly before filling in pairs

Question 30

Pauli Exclusion Principle

Answer 30

No more then 2 electrons can fill an orbital and they must have opposite spin

Question 31

Valence Electron Def.

Answer 31

The outermost electron in an atom

Question 32

Ion def.

Answer 32

a positively/negatively charged atom

Question 33

Cation def.

Answer 33

positive ion

Question 34

Main negative ion in blood

Answer 34

Cl-

Question 35

Anion def.

Answer 35

Negatively Charged Ion

Question 36

Main Cation in Cell Fluid

Answer 36

K+