Science State Std 8 L No.5 Inside The Atom

Front 1

matter

Back 1

the substance of which physical

object is composed

Front 2

atom

Back 2

the smallest particle of an

element that can exist either

alone or in combination

Front 3

particle

Back 3

any of the basic units of matter

and energy

Front 4

neutral

Back 4

not electrically charged

Front 5

molecule

Back 5

the smallest particle of a

substance that retains all

the properties of the substance

and is composed of one or

more atoms

Front 6

flick

Back 6

a light sharp jerky stroke or

movement

Front 7

bombard

Back 7

the subject to the impact of

rapidly moving particles (such

as electrons)

Front 8

Concentric

Back 8

having a common center

Front 9

Orbit

Back 9

a circular path

Front 10

emit

Back 10

to throw or give off or out

Front 11

fission

Back 11

the splitting of an atomic nucleus resulting in the release of large amounts of energy

Front 12

Substance

Back 12

physical matter or material

Front 13

atomic number

Back 13

number of protons in the

nucleus of an atom

Front 14

electronic configuration

Back 14

distribution of electrons of

an atom /molecule

Front 15

radioactive

Back 15

spontaneous emission of

radiation in the form of particles

Front 16

nucleons

Back 16

a proton or neutron especially

in the atomic nucleus

Front 17

negligible

Back 17

so small or unimportant to pay attention

Front 18

depict

Back 18

to present by picture

Front 19

flexible

Back 19

capable of being bend

Front 20

proton

Back 20

one of the three particles

of atom present in nucleus

and have positive charge

Front 21

neutron

Back 21

an uncharged elementary particle

Front 22

fundamental

Back 22

serving as an original source

Front 23

turbine

Back 23

a rotatory engine activated

by current or fluid