Physical and Chemcial Change

Question 1

Atoms are the building blocks of……?

Answer 1

Matter

Question 2

The smallest representative of an element is an….?

Answer 2

Atom

Question 3

The smallest piece of an element is an…?

Answer 3

Element

Question 4

A molecule can be made up of different atoms which is called……

Answer 4

Compound

Question 5

A molecule can be made up of many of the same atoms, this is called

Answer 5

Elemental

Question 6

Atoms of the same element are

Answer 6

Identical

Question 7

Metals are (3 words)

Answer 7

Shiney, malleable, and conductors

Question 8

Atoms are composed of 3 subatomic particles

Answer 8

Protons, neutons, electrons

Question 9

The nucleus contains (2)

Answer 9

Protons and Neutrons

Question 10

Electrons surround the …

Answer 10

Nucleus

Question 11

Atoms have a nucleus and a cloud of

Answer 11

Electrons

Question 12

Subatomic means

Answer 12

Smaller or below the level of an atom

Question 13

Proton and neutrons each have a mass of

Answer 13

one (they weigh the same)

Question 14

Electrons are very very very tiny and they have…

Answer 14

the 1/2000 mass of a proton

Question 15

Protons have a positive charge and neutrons

Answer 15

have no charge (are neutral)

Question 16

Electrons have a…

Answer 16

Negative charge

Question 17

The nucleus is made up of

Answer 17

Positive and neutral particles

Question 18

The atomic cloud is made up of

Answer 18

negative particles

Question 19

positive (protons) and neutral (neutrons) particles like to

Answer 19

Group together

Question 20

negative (electrons) particles stay

Answer 20

far apart

Question 21

What is the charge and mass of a proton

Answer 21

+, 1

Question 22

What is the charge and mass of an electron

Answer 22

-, 1/2000

Question 23

What is the charge and mass of a neutron

Answer 23

0, 1

Question 24

The atomic number of an element is

Answer 24

the number of protons in the nucleus of an atom

Question 25

So Boron has an atomic number 5, so boron has

Answer 25

5 protons

Question 26

On your periodic table, the number of protons is equal to the number of....? Because the elements are all....?

Answer 26

Electrons, Neutral

Question 27

Neutral means that an element has the same (4 words)

Answer 27

Positive and Negative Charges

Question 28

The atoms on the periodic table are........on their own but ..........

Answer 28

unstable, neutral

Question 29

Proton number is equal to the number of...

Answer 29

Electrons

Question 30

Atoms in the periodic table are .....

Answer 30

Neutral

Question 31

Elements are arranged in the periodic table in order of

Answer 31

increasing atomic number

Question 32

An atomic number is always a

Answer 32

whole number

Question 33

The mass number is always........than the atomic number

Answer 33

bigger

Question 34

Change the atomic number you change the

Answer 34

element

Question 35

The mass number tells us how much the element

Answer 35

weighs

Question 36

Protons + Neutrons equal the

Answer 36

mass number

Question 37

Atomic number (P+ (=) e-) so mass equals

Answer 37

(P+ (+) N)

Question 38

neutrons = mass number -

Answer 38

atomic number

Question 39

ON the period table the atomic number tells us the number of

Answer 39

protons and electrons (11 protons and 11 electrons for NA)

Question 40

On the PT the mass number tells us the number of

Answer 40

protons + neutrons (11 Protons + 12 neutrons = 23 Mass number for NZ)

Question 41

Everything is neutral in the periodic table because....

Answer 41

you have one electron (-) and one proton (+)

Question 42

What is an isotope?

Answer 42

An isotope is an atom of an element and has the same atomic number, but a different number of neutrons

Question 43

An isotope can have slightly different

Answer 43

mass numbers

Question 44

All elements have isotopes that occur

Answer 44

naturally

Question 45

The isotope has the same number of

Answer 45

protons

Question 46

The isotope has a different number of

Answer 46

neutrons

Question 47

The isotope can have a different

Answer 47

mass number

Question 48

The relative atomic weight (RAM) is the .........(2 words) of all the isotopes for that element.

Answer 48

average mass

Question 49

On the periodic table was is the most common isotope mass number for Mg?

Answer 49

24

Question 50

Atomic weight is rounded to the nearest whole number, it gives the mass number for the most..... ...... of that .......

Answer 50

common isotope for that number

Question 51

The RAM is the average number of isotopes mass so not a....

Answer 51

whole number

Question 52

One element (atom) can have different weight (P+N) but still retains its.....

Answer 52

proton number or atomic number

Question 53

True or false, relative mass is not a whole number (unlike atomic mass)

Answer 53

True as it is an average of all the isotopes in that element

Question 54

When the atomic weight (RAM) is rounded to the nearest whole number, it gives the ........ .......... for the most ....... ........... of that element

Answer 54

mass number , common isotope

Question 55

Elections have energy levels for placement in the atomic cloud. They are...

Answer 55

two seats in the front then placed in eight seats

Question 56

What is the name for the electrons in the outer shell

Answer 56

Valance electrons

Question 57

The row of the periodic table will tell you how many .... levels there are in the element

Answer 57

energy

Question 58

The columns (ignoring the ones in the middle) of the periodic table will tell you how many.....

Answer 58

valance electrons there are

Question 59

C6H12O6 + 02 - CO2 + H20 is this a physical or chemical change

Answer 59

Chemical

Question 60

Using a solvent to remove a grease spot a physical or chemical change

Answer 60

Physical

Question 61

Is Wax melting a physical or chemical change

Answer 61

physical

Question 62

Is digestion of food a physical change or chemical change

Answer 62

Chemical

Question 63

Is a candle burning a physical change or a chemical change?

Answer 63

chemical

Question 64

Is photosynthesis a physical or chemical change

Answer 64

Chemical

Question 65

C6H12O6(s) - C6H12O6 (l) physical or chemical change?

Answer 65

Physical

Question 66

Sublimation of dry ice to C02 gas is a physical or chemical change

Answer 66

Physical