Nature of the Elements

Question 1

What way does a period go?

Answer 1

across

Question 2

What way does a group go?

Answer 2

down

Question 3

Do elements in the same group have similar properties?

Answer 3

yes

Question 4

What properties do elements in the same group share?

Answer 4

reactivity, physical properties

Question 5

What is group 1?

Answer 5

alkali metals

Question 6

What is group 2?

Answer 6

alkaline earth metals

Question 7

What is group 3?

Answer 7

transition metals

Question 8

What is group 15?

Answer 8

pnictogens

Question 9

What is group 16?

Answer 9

chalcogens

Question 10

What is group 17?

Answer 10

halogens

Question 11

What is group 18?

Answer 11

noble gases

Question 12

Why are noble gases special?

Answer 12

they are unreactive, and their valence shell is full

Question 13

What does the number of the group show?

Answer 13

how many valence electrons an element has

Question 14

What qualities do metals have?

Answer 14

they are shiny, conductive, malleable, and ductile

Question 15

What qualities do nonmetals have?

Answer 15

they are not shiny, conductive, malleable, or ductile

Question 16

What qualities do metalloids have?

Answer 16

some metal properties (can be metals or nonmetals)

Question 17

What elements are the metalloids?

Answer 17

boron, silicon, germanium, arsenic, and tellurium

Question 18

How did Bohr quantize orbits?

Answer 18

circular standing wave

Question 19

What is the double-slit experiment?

Answer 19

if you send a beam of electrons through 2 slits, they will produce an interference pattern

Question 20

What do electrons do at a quantum level?

Answer 20

generate waves

Question 21

What are pilot waves?

Answer 21

guides motion of the point particles

Question 22

What is the quantum theory of the atom?

Answer 22

incorporates wave-particle duality

Question 23

What is the Heisenberg uncertainty principle?

Answer 23

inexact location of electron

Question 24

What is the Heisenberg uncertainty principle equation?

Answer 24

(△x)(m △v) ≥ h/4 π

Question 25

What is △x?

Answer 25

uncertainty in position

Question 26

What is m △v

Answer 26

uncertainty in velocity

Question 27

What is h/4 π

Answer 27

constants

Question 28

What is uncertainty in position?

Answer 28

inequality, can’t know position and velocity at the same time

Question 29

What is the Schrödinger equation?

Answer 29

location of electron
electrons are 3D stationary waves
determines orbital
describes orbital pictures, underlying maths with quantum numbers

Question 30

What are quantum numbers?

Answer 30

location for a given electron (relative to the nucleus)

Question 31

Can electrons have the same set of quantum numbers?

Answer 31

no

Question 32

How many quantum numbers are there?

Answer 32

4

Question 33

What are the 3 interrelated quantum numbers?

Answer 33

principle(n)=overall energy (size)
angular movement(𝓵)=shape of orbital
magnetic(m𝓵)=orientation, number of orbitals

Question 34

What is the 1 unrelated quantum number?

Answer 34

spin (m2)=direction electron is spinning