All

Question 1

What is an ion?

Answer 1

an ion is an atom or a group of atom that has a charge

Question 2

what is the name for a ‘+’ charged ion?

Answer 2

cation

Question 3

When an atom has the same number of proton and elecctron, the atom is? (what charge)

Answer 3

neutral, no charge

Question 4

what is the name for a negatively charged ion?

Answer 4

anion

Question 5

When a group of atoms comes together and forms a charge, it is a ____________

Answer 5

polyatomic ion

Question 6

Ionic bonds are formed with which two types of elements?

Answer 6

metals and non-metals

Question 7

the name of the bond that involves a metal and non-metal is called a?

Answer 7

ionic bonds

Question 8

how to describe an ionic bond?

Answer 8

bonds between metal and non - metal, usually the metal atom gives off an electron to the non metal atom, which forms opposite charges that stick the two atoms together.

Question 9

what is the name of a negatively charged chlorine atom?

Answer 9

chloride ion

Question 10

there are ____ (how many) known elements that are recognized by the chemists.

Answer 10

118

Question 11

The atoms in the periodic table of elements are arranged by ____.

Answer 11

number of proton in each atom (or atomic number)

Question 12

what is the first element in the periodic table?

Answer 12

Hydrogen

Question 13

elements are either classified as ____ or ____, (what type)

Answer 13

metal, non metal

Question 14

____ is the first element of the periodic table.

Answer 14

Hydrogen

Question 15

elements in the periodic tables are arranged in groups (column) and periods (rows) and every group has its special properties, the first column is ____ group.

Answer 15

Alkali metals

Question 16

alkali metals are ____, ____, and extremely _____.(properties)

Answer 16

shiny, soft, reactive.

Question 17

____ is an exception in this first group, even though alkali metals are metals, this element is considered as non-metal.

Answer 17

Hydrogen

Question 18

Alkali metals are usually stored in oiled containers because they are ______.

Answer 18

extremely reactive.

Question 19

Alkali metals all have ____ electron on their valance shell.

Answer 19

1

Question 20

____ is a row of elements in the periodic table.

Answer 20

period

Question 21

alkaline earth metals are the ______ (which column) group of the periodic table of elements.

Answer 21

second

Question 22

____ (a type of element) is solid at room temperature, with a shiny appearance, and very malleable, this type of element is also a very good conductor.

Answer 22

metals

Question 23

What are some of the properties of non-metal elements?

Answer 23

it could be solid, liquid, or gas at room temperature, it acts as an insulator, it has a dull look, it is brittle.

Question 24

what is an element that is an exception that we have to give it its own type?

Answer 24

Hydrogen

Question 25

Alkaline earth metals are _____, and______

Answer 25

light, reactive

Question 26

group 17 on the periodic table of elements is _____

Answer 26

halogen

Question 27

Halogens are _________ (property)

Answer 27

one of the most reactive groups in the periodic table of elements.

Question 28

Halogens have _____ (how many) valance electrons in their outer shell.

Answer 28

7

Question 29

noble gas is the _____ (what number) th group of the periodic table of elements.

Answer 29

18

Question 30

Noble gas is the most _____ group of atoms in the periodic table of elements.

Answer 30

stable

Question 31

Noble gas doesn't react to other elements because ______ (how many atoms are in the valance shell)

Answer 31

they have a full valance shell. (eight electrons)

Question 32

how many electrons can the first ring of an atom hold up to?

Answer 32

2

Question 33

a ___________ is a diagram representing the atom's arrangement of electrons in orbit around the nucleus.

Answer 33

Bohr-rutherford diagram

Question 34

The number of neutrons = atomic mass - _______

Answer 34

atomic numbers

Question 35

lithium, with an atomic mass of 7 and a atomic number of 3, what is the number of neutrons existing in this atom?

Answer 35

4

Question 36

this first orbit of the electron has 2 electrons, and the second orbit has ____ electrons.

Answer 36

2, 8

Question 37

____ are substances made up of more than one atoms.

Answer 37

compounds

Question 38

metal elements tend to _____ electrons while Bonding

Answer 38

Loose

Question 39

Most non-metal elements has ____ to ___ electrons in their valance shell.

Answer 39

4 to 8

Question 40

hydrogen is an exception because it only has ___ electron(s) and it is also a non-metal.

Answer 40

1

Question 41

______ is a compound that separates into ions when it is dissolved in water, producing a solution that conducts electricity.

Answer 41

electrolyte

Question 42

most ____ compounds are electrolytes because when dissolved into water they can conduct electricity.

Answer 42

ionic

Question 43

_____ compounds are usually hard brittle solids with a high melting point.

Answer 43

ionic

Question 44

_________ is the portion of the electromagnetic spectrum that is visible to the human eyes.

Answer 44

light spectrum

Question 45

light spectrum is the portion of the __________ that is visible to the human eyes.

Answer 45

electromagnetic spectrum

Question 46

ranging from the wavelength in descending order. radio wave, _______, visible light, ultraviolet rays, x-ray, gamma ray.

Answer 46

infrared

Question 47

ranging from the wavelength in descending order. radio wave, infrared wave, visible light, _______, x-ray, gamma ray.

Answer 47

ultraviolet rays

Question 48

there are __ (how many) rays in the Electro-Magnetic spectrum.

Answer 48

7

Question 49

_________ has the highest frequency of all the rays.

Answer 49

Gamma rays

Question 50

the _____ the frequency the higher the energy.

Answer 50

higher

Question 51

the _____ the frequency the lower the energy.

Answer 51

lower

Question 52

the higher the frequency the ____ the energy.

Answer 52

higher

Question 53

______ (what wave) has the lowest frequency.

Answer 53

Radio

Question 54

in ____ model of light, light is described as a line or a ray that shows where the light is traveling.

Answer 54

ray

Question 55

light can travel through a ______ (what kind of object) without changing the direction of the light or being completely absorbed.

Answer 55

transparent

Question 56

light cannot pass through a ______ object.

Answer 56

opaque

Question 57

the direction of the light gets scattered all over the place when light passes through a _____ object.

Answer 57

translucent

Question 58

in the law of reflection, the incoming light ray that is about to strike the object is called?

Answer 58

incident ray

Question 59

in the law of reflection, the light ray that bounced off the barrier is called?

Answer 59

reflected ray

Question 60

in the law of reflection, a dotted barrier is drawn perpendicular to the barrier, this line is called?

Answer 60

normal

Question 61

in the law of reflection, the angle created by the normal and ____is equal to the angle formed by normal and reflected ray.

Answer 61

incident ray The angle made by the normal and incident ray is called "the angle of incidence"

Question 62

in the law of reflection, the angle created by the normal and incident ray is equal to the angle formed by the normal and _______.

Answer 62

reflected ray The angle formed by the normal and the ray of reflection is called "angle of reflection"

Question 63

in a plane mirror | The angle of reflection __ (a statement) angle of incidence

Answer 63

= (equal to)

Question 64

Refraction of light happens when light travels through objects with different _____.

Answer 64

density

Question 65

the higher the density the _____ (speed) the light travels.

Answer 65

slower

Question 66

the ____ the density the faster the light travles.

Answer 66

lower

Question 67

the more the light bend towards the normal when refraction happens, the _____ (speed) the light travels.

Answer 67

slower

Question 68

when light bends away from the normal during refraction, the light is traveling to a ____ density (density of the object) object.

Answer 68

lower

Question 69

C^2 = A^2 + B^2 - 2AB * Cos (C) | is the equation for the ____ law.

Answer 69

cosine

Question 70

the light ray that passes through a concave lens _____ (converge or diverge)

Answer 70

diverge

Question 71

light travels at a speed of _________ in the air.

Answer 71

3*10^8 m/s

Question 72

concave lenses are ___ (thickness) in the middle.

Answer 72

thinner

Question 73

convex lenses are ____ (thickness) in the middle.

Answer 73

wider

Question 74

_____ lenses are thinner in the middle.

Answer 74

concave

Question 75

_____ lenses are thicker in the middle.

Answer 75

convex

Question 76

placing an object at ______ (distance) in front of a concave lens, the image will appear smaller and upright.

Answer 76

any distance

Question 77

all of the image concave lense produce is _____ (virtual or real)

Answer 77

virtual