Quest

Question 1

What did Mendeleev do

Answer 1

Created periodic table by organizing elements by increasing ATOMIC MASS
Similar properties were grouped together

Question 2

T or F, mendeleevs periodic table had some discrepancies

Answer 2

True, however he could predict properties of undiscovered elements

Question 3

What did Henry Mosley do

Answer 3

Organized elements by INCREASING ATOMIC NUMBER in his periodic table, resolved mendeleevs discrepancies

Question 4

Which way does a period go

Question 5

Which way do columns, groups, families go

Answer 5

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Question 6

Where are metals located

Answer 6

Left side besides hydrogen

Question 7

Where are non metals located

Answer 7

Right side

Question 8

Where are metalloids located

Answer 8

In the diagonal piece

Question 9

Most metallic and gaseous

Answer 9

Metallic-francium

Gaseous- hydrogen

Question 10

Increase metallic property

Answer 10

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Question 11

Alkali metals

Answer 11

Group one

Question 12

Alkaline earth metals

Answer 12

Group two

Question 13

Transition metals

Answer 13

Body section

Question 14

Halogens

Answer 14

Group next to Nobel gases

Question 15

Nobel gases

Answer 15

Last group

Question 16

Noble gases

Answer 16

Stable octet- full valence
Colorless gases
Monatomic-come alone very unreactive

Question 17

Alkali earth metal

Answer 17

One electron valence 
Very reactive 
Form ionic compounds with non metals
Form insoluble salts with silver
Diatomic (exists in pairs)

Question 18

What are gases at SATP

Answer 18

Fluorine and chlorine

Question 19

What are liquid at SATP

Answer 19

Bromine

Question 20

What are solids at SATP

Answer 20

Iodine and astatine

Question 21

T or F, SATP states can be found on chem helper

Answer 21

TRUEEEE

Question 22

Periodic law

Answer 22

When elements are arranged in order of increasing atomic number, elements with similar properties appear of regular intervals

Question 23

How is atomic radius calculated

Answer 23

Distance between two nuclei divided by two

Question 24

Cations

Answer 24

Positive.
Lose electrons
Smaller atomic radius

Question 25

Anions

Answer 25

Negative Gain electrons Larger atomic radius

Question 26

Atomic radius across periods and down groups

Answer 26

Across period- decreases | Down groups- increases

Question 27

Ionization across periods and down groups

Answer 27

Across periods- increases | Down groups- decreases

Question 28

Electronegativity across periods and down groups

Answer 28

Across periods- increases | Down groups- decreases

Question 29

Ionization energy

Answer 29

The energy required to remove an electron from an gaseous atom

Question 30

Why is an atom with high ionization not likely to form positive ion

Answer 30

Strong hold on electrons so it's not likely to lose an electron

Question 31

Octet rule

Answer 31

Atoms tend to gain, lose, or share electrons in order to get a full valence outer shell

Question 32

Electronegativity

Answer 32

Atoms ability to attract electrons in a chemical bond

Question 33

What is the relationship between attractive force and number of protons and electrons

Answer 33

The attractive force of the nucleus is not divided up amount electrons of the atom, each electron gets the full attractive force of the nucleus

Question 34

Octaves

Answer 34

Properties of the elements repeated every eight elements

Question 35

Periodic law

Answer 35

When elements are arranged according to increasing atomic number, there is a periodic repetition of their chemical and physical properties

Question 36

Similar chemical properties are located

Answer 36

Down a group

Question 37

Similar chemical properties down a group because

Answer 37

They have the same number of valence electrons

Question 38

Energy level of valence electron related to period

Answer 38

Period number is the number of the energy level the valence electrons are on

Question 39

Coloumbic attraction

Answer 39

Attraction between oppositely charged particles

Question 40

Halogens

Answer 40

``` Seven valence Very reactive Non metals Form ionic compounds with metals Diatomic ```

Question 41

Atomic radius Electronegativity Ionization trends

Answer 41

Atomic radius increases down and decreases to the right | Others are inverse