Matter

Question 1

It is a pure substance that cannot be broken down into simpler substances by a chemical reaction

Answer 1

Element

Question 2

Each element is identified by a one- or two- letter _____

Answer 2

Symbol

Question 3

Elements are arranged in the ______

Answer 3

Periodic table

Question 4

The position of an element in the periodic table tells us much about its ________

Answer 4

Chemical properties

Question 5

These elements are good conductor of heat and electricity

Answer 5

Metals

Question 6

These are shiny solids at room temperature, except for mercury

Answer 6

Metals

Question 7

Which metal is a liquid at room temperature

Answer 7

Mercury

Question 8

What state of matter are most metals at room temperature?

Answer 8

Solid

Question 9

In the periodic table, which side are the metals located?

Answer 9

Left side

Question 10

In the periodic table, which side are the nonmetals located?

Answer 10

Right side

Question 11

This type of element is a poor conductors of heat and electricity

Answer 11

Nonmetal

Question 12

Nonmetals have a _____ appearance

Answer 12

Dull

Question 13

These are located on the solid line that starts at boron (B) and angles down towards Astatine (At)

Answer 13

Metalloid

Question 14

This type of element have properties intermediate between metals and nonmetals

Answer 14

Metalloids

Question 15

How many elements are metalloids?

Answer 15

7

Question 16

These are the 4 elements that compromise 96% of the mass of the human body

Answer 16

Oxygen, Carbon, Hydrogen, Nitrogen

Question 17

These elements are present in smaller amounts and at least 100mg of each are needed in the daily diet

Answer 17

Major Mineralsl

Question 18

Usually less than 15 mg of each of these elements are required in the daily diet

Answer 18

Trace elements

Question 19

In Trace Elements, usually less than ____mg of each of these elements are required in the daily diet

Answer 19

15

Question 20

Major Minerals are present in smaller amounts and at least ___mg of each are needed in the daily diet

Answer 20

100

Question 21

It is a pure substance formed by chemically combining two or more elements together

Answer 21

Compound

Question 22

It shows the ratio of atoms in the compound

Answer 22

Subscript

Question 23

All matter is composed of the same building blocks called?

Answer 23

Atoms

Question 24

Atoms are composed of how many subatomic particles?

Answer 24

Proton, Neutron, and Electron

Question 25

Where are the protons and neutrons located?

Answer 25

Nucleus

Question 26

This is where electrons can be found

Answer 26

Electron cloud

Question 27

This indicates the number of *protons* in the nucleus

Answer 27

Atomic Number

Question 28

These are atoms of the same element that have a different number of neutrons

Answer 28

Isotopes

Question 29

It is the weighted average od the masses of the naturally occurring isotopes of a particular element

Answer 29

Atomic weight

Question 30

They consist of the lanthanides and actinides

Answer 30

Inner transition metals

Question 31

An _____ is confined to a specific region around the nucleus, giving itba particular energy

Answer 31

Electron

Question 32

The regions occupied hy electrons are called _____?

Answer 32

Principal energy level/ shells

Question 33

Electrons in lower numbered shells are _____ to the nucleus and are ___ in energy

Answer 33

Closer; lower

Question 34

Electrons in ____ numbered shell are further from the nucleus and are higher in energy

Answer 34

Higher

Question 35

Shells with ____ numbers are farther from the nucleus and can hold *more electrons*

Answer 35

Larger

Question 36

It is a region if space where the probability of finding an electron is high

Answer 36

Orbital

Question 37

Each orbital can hold how many electrons?

Answer 37

2

Question 38

What is the shape of s orbital?

Answer 38

S orbital have a spherical shaps

Question 39

What is the shape of a p orbital?

Answer 39

Dumbbell

Question 40

It shows how the electrons are arranged in an atoms orbitals

Answer 40

Electron configuration

Question 41

It is the lowest energy arrangement

Answer 41

Ground state

Question 42

The Electron configuration can be shortened using __________?

Answer 42

Noble gas notation

Question 43

The ______ of an element depend on the number of electrons in the *valence shells*

Answer 43

Chemical properties

Question 44

It is the outermost shell

Answer 44

Valence shell

Question 45

These are the electrons in the valence shell

Answer 45

Valence electron

Question 46

It is the energy needed to remove an electron from a neutral atom

Answer 46

Ionization energy