Chapter 9 & 10 Science Vocab

studied byStudied by 14 people
5.0(2)
Get a hint
Hint

atom

1 / 27

encourage image

There's no tags or description

Looks like no one added any tags here yet for you.

28 Terms

1

atom

the smallesst piece of an element that still represents that element

New cards
2

electron

a particle with one negative charge

New cards
3

nucleus

a small area in the center of an atom where most if an atom’s mass and positive charge is concentrated

New cards
4

proton

an atomic particle that has one positive charge

New cards
5

neutron

a neutral particle that exissts in the nucleus of an atom

New cards
6

electron cloud

an area around an atomic nucleus where an electron is most likely to be located

New cards
7

ion

an atoms that is no longer neutral befcause it has gained or lost electrons

New cards
8

atomic number

the number of protions in an atom of an element

New cards
9

isotope

atoms of the same element that have different numbers of neutrons

New cards
10

mass number

the sum of the number of protons and neutrons in an atom

New cards
11

average atomic mass

the average mass of the element’s isotopes, weighted according to the abundance of each isotope

New cards
12

radioactive

elements that spontaneously emit radiation

New cards
13

nuclear decay

a process that occurs when an unstable atomic nucleus changes into another more stable nucleus by emitting radiation

New cards
14

periodic table

a chart of the elements arranged into rows and columns according to their physical and chemical properties

New cards
15

group

a column on the periodic table

New cards
16

period

the rows on the periodic table

New cards
17

metal

an element that is generally shiny, easily pulled int othin sheets, and a good conductor of electricity and thermal energy

New cards
18

luster

describes the ability of a metal to reflect light

New cards
19

ductility

the ability to be pulled into thin wires

New cards
20

malleability

the ability of a substance to be hammered or rolled into sheets

New cards
21

alkali metal

the elements in group 1

New cards
22

alkaline earth metal

the elements in group 2 on the periodic table

New cards
23

transition element

the elements in group 3-12

New cards
24

nonmetal

elements that have no metalic properties

New cards
25

halogen

an element in group 17 of the periodic table

New cards
26

noble gas

th element in group 18 of the periodic table

New cards
27

metalloid

an element that has physical and chemical properties of both metals and non metals

New cards
28

semiconductor

conducts electricity at high temperatures but not low temperatures

New cards

Explore top notes

note Note
studied byStudied by 12 people
... ago
5.0(1)
note Note
studied byStudied by 26 people
... ago
5.0(1)
note Note
studied byStudied by 126825 people
... ago
4.9(606)
note Note
studied byStudied by 13 people
... ago
5.0(1)
note Note
studied byStudied by 18124 people
... ago
4.7(73)
note Note
studied byStudied by 47 people
... ago
5.0(1)
note Note
studied byStudied by 54 people
... ago
5.0(1)
note Note
studied byStudied by 672 people
... ago
4.2(5)

Explore top flashcards

flashcards Flashcard (23)
studied byStudied by 174 people
... ago
5.0(1)
flashcards Flashcard (28)
studied byStudied by 6 people
... ago
5.0(1)
flashcards Flashcard (67)
studied byStudied by 3 people
... ago
5.0(1)
flashcards Flashcard (38)
studied byStudied by 74 people
... ago
5.0(4)
flashcards Flashcard (24)
studied byStudied by 1 person
... ago
5.0(1)
flashcards Flashcard (187)
studied byStudied by 18 people
... ago
5.0(2)
flashcards Flashcard (238)
studied byStudied by 2491 people
... ago
5.0(10)
flashcards Flashcard (21)
studied byStudied by 7 people
... ago
5.0(1)
robot