Unit 4 Review (Matter, PTE, Atoms)(Chapters 1 & 3)

Question 1

Which part of the atom has a positive charge?

Accepted Answer

protons

Question 2

Metalloids, or semi-metals, are located ...

Accepted Answer

in a zig-zag between the metals & non-metals

Question 3

As an isotope is created, which will be effected

Accepted Answer

mass

Question 4

Which is NOT a chemical property?

Accepted Answer

malleability (breakable, flexible)

Question 5

If you change the number of electrons in an atom, you get a(n) ____________.

Accepted Answer

ion

Question 6

A horizontal ROW on the periodic table is known as a _______.

Accepted Answer

period

Question 7

Which of the following is NOT a physical property of an element or compound?

Accepted Answer

toxicity level (pH level)

Question 8

All 'alkali metals' have 1 valence electron, which family will it bond with?

Accepted Answer

halogens

Question 9

Which family has many semi-conductors and has characteristics of BOTH metals & non-metals?

Accepted Answer

metalloids

Question 10

Which side of the periodic table are the atoms the largest?

Accepted Answer

left

Question 11

Which is an example of heterogeneous mixture?

Accepted Answer

salad

Question 12

What is TRUE about mixtures

Accepted Answer

only needs a physical change

Question 13

What type of a change are these actions?

Accepted Answer

chemical changes

Question 14

If you change the number of neutrons in an atom, you will get a(n) _______________.

Accepted Answer

isotope

Question 15

The noble gases, such as He and Ne, are __________ chemically reactive.

Accepted Answer

not

Question 16

Which one of these terms best describes the picture?

Accepted Answer

mixture of elements

Question 17

What is the largest family on the periodic table?

Accepted Answer

transition metals

Question 18

Which describes matter? Any substance that ...

Accepted Answer

has mass & volume

Question 19

Which word best describes the picture?

Accepted Answer

pure compound

Question 20

What family on the PTE is the most reactive in includes Li, Na, & K?

Accepted Answer

alkali metals

Question 21

Which ion has lost electron(s)?

Accepted Answer

Na +1

Question 22

What type of pure substance is made of two or more DIFFERENT elements bonded together.

Accepted Answer

compound

Question 23

Which scientist claimed that all atoms were small & indivisible; NO subparts?

Accepted Answer

Dalton

Question 24

What is the formula for density? D = ?

Accepted Answer

D = mass per volume

Question 25

Which scientist organized the electrons into certain energy levels?

Accepted Answer

Bohr

Question 26

Which alkali metal is the largest in mass & radius size?

Accepted Answer

Fr

Question 27

Which element is more massive?

Accepted Answer

Nitrogen (N)

Question 28

What kind of change is needed if a pure substance is going to change into a different pure substance?

Accepted Answer

on a chemical change

Question 29

What type of a change are the following an example of?

Accepted Answer

physical change

Question 30

what is the amount of matter in a given space?

Accepted Answer

density

Question 31

What type of radioactive decay causes the nucleus to lost 2 protons & 2 neutrons, making it lighter?

Accepted Answer

alpha decay

Question 32

How is the CURRENT DAY periodic table officially arranged?

Accepted Answer

atomic number

Question 33

How do you figure out the number of protons?

Accepted Answer

atomic number

Question 34

Which scientist discovered there were subparts in an atom; different charges?

Accepted Answer

Thompson

Question 35

Which element has 6 energy levels & 8 valence electrons?

Accepted Answer

Radon (Rn)

Question 36

Which element has 7 energy levels?

Accepted Answer

Francium (Fr)

Question 37

The study of matter is known as ...

Accepted Answer

chemistry

Question 38

A vertical column on the periodic table is known as a ________.

Accepted Answer

group

Question 39

If an atom GAINS 2 electrons it will have which charge?

Accepted Answer

-2

Question 40

Which element has 2 energy levels and 5 valence electrons?

Accepted Answer

Nitrogen (N)

Question 41

Which scientist discovered the neutron, no charge?

Accepted Answer

Chadwick

Question 42

Which scientist used the 'cloud model' which showed electron location was 'probable', not exact?

Accepted Answer

Heisenburg

Question 43

Which scientist used the goldfoil experiment to discover the nucleus?

Accepted Answer

Rutherford

Question 44

How do you calculate the approximate mass of an atom?

Accepted Answer

protons + neutrons

Question 45

How do you figure out the # of neutrons in an atom?

Accepted Answer

mass - protons

Question 46

What type of radioactive decay causes the nucleus to gain a nuetron, but lost a proton?

Accepted Answer

beta decay

Question 47

Which is NOT a physical property of an element or a compound?

Accepted Answer

reactive with other substances

Question 48

How do you figure out the number of electrons in a neutral atom?

Accepted Answer

atomic number

Question 49

What is created if you change the # of protons in an atom?

Accepted Answer

new element

Question 50

What type of radioactive decay has no change to the nucleus, but gives off powerful radiation?

Accepted Answer

gamma decay

Question 51

How many different types of atoms are in this compound?

Accepted Answer

3

Question 52

How many different types of compounds are shown in the diagrams?

Accepted Answer

2

Question 53

Which is the correct notation for an ion?

Accepted Answer

C -4 or C+4

Question 54

Which element has 7 valence electrons?

Accepted Answer

Chloride (Cl)

Question 55

Which is the correct notation for an isotope?

Accepted Answer

Carbon - 14 or 14C

Question 56

What is the TIME period that is needed for half of a radioactive substance to become safe?

Accepted Answer

half-life

Question 57

As an ion is created, which will be impacted?

Accepted Answer

charge & bonding ability

Question 58

What else will you do to prepare for this test?

Accepted Answer

book reading assignments, vocabulary ws., lab sheet ?s, replay the kahoot game(s)

Unit 4 Review (Matter, PTE, Atoms)(Chapters 1 & 3)

Questions 58

Unit 4 Review (Matter, PTE, Atoms)(Chapters 1 & 3)

Questions 58