Periodic Table and People

Question 1

Atomic Radius _________ when moving down.

Accepted Answer

increases

Question 2

What ELEMENTS are lanthanides?

Accepted Answer

58-71

Question 3

An atoms pull of electrons towards itself is what?

Accepted Answer

electronegtivity

Question 4

Goldsteins experiment used

Accepted Answer

anode rays

Question 5

What is the mass of an electron?

Accepted Answer

0amu

Question 6

Halogens are what group?

Accepted Answer

17

Question 7

Electron Affinity _________ when moving down

Accepted Answer

decreases

Question 8

Electronegativity ________ when moving from left to right

Accepted Answer

increases

Question 9

Goldstein discovered.....

Accepted Answer

protons

Question 10

Who discovered the mass and charge of the electron?

Accepted Answer

Milikan

Question 11

What ELEMENTS are atinides?

Accepted Answer

90-103

Question 12

Ionization energy _________ when moving from left to right

Accepted Answer

increases

Question 13

The second/current periodic table is organised by what?

Accepted Answer

atomic number

Question 14

Nobel gases are what group?

Accepted Answer

18

Question 15

The energy when an atom gains an electron is what?

Accepted Answer

electron affinity

Question 16

Electron Affinity _________ when moving left to right

Accepted Answer

increases

Question 17

What is the mass of a proton?

Accepted Answer

1amu

Question 18

Who came up with the idea of atoms?

Accepted Answer

Democritus

Question 19

What was not part of the first atomic theory?

Accepted Answer

Atoms are made of protons, neutrons, and electrons

Question 20

What groups are the main group elements?

Accepted Answer

1,2,13-18

Question 21

Ionization energy _________ when moving down

Accepted Answer

decreases

Question 22

Ionic Radius ________ when moving from left to right

Accepted Answer

increases

Question 23

Who discovered electrons and disproved the idea that atoms were indivisible and indestructable?

Accepted Answer

Thompson

Question 24

Aristotle thought matter was a continuous stream of what?

Accepted Answer

ether

Question 25

The first periodic table was organized by what?

Accepted Answer

atomic mass

Question 26

Who performed the gold foil experiment?

Accepted Answer

Rutherford

Question 27

Who created the first periodic table?

Accepted Answer

Mendeleev

Question 28

JJ Thompson used what to discover electrons?

Accepted Answer

cathode rays

Question 29

The transition metals are what group?

Accepted Answer

3-12

Question 30

What is the measurement of the size of an ion?

Accepted Answer

ionic radius

Question 31

Proust discovered

Accepted Answer

Law of Definite Proportions

Question 32

Alkaline Earth Metals are what group?

Accepted Answer

2

Question 33

Ionic Radius _________ when moving down

Accepted Answer

increases

Question 34

The energy needed to remove an electron from an atom is called what?

Accepted Answer

Ionization Energy

Question 35

Who discovered the law of conservation of matter?

Accepted Answer

Lavoisier

Question 36

Electronegativity ______ when moving down

Accepted Answer

decreases

Question 37

Atomic radius _______ when moving from left to right?

Accepted Answer

decreases

Question 38

Alkali Metals are what group on the periodic table?

Accepted Answer

1

Question 39

Milikan used what experiment?

Accepted Answer

oil

Question 40

Goldstein used what in his experiments?

Accepted Answer

anode rays

Question 41

James Chadwick discovered the neutron with what experiment?

Accepted Answer

Different mass

Question 42

Rutherford found

Accepted Answer

himself, nucleus

Periodic Table and People

Questions 42

Periodic Table and People

Questions 42