Chapter 19: Properties of Atoms and Periodic Table
5.0(1)
Studied by 5 people5.0(1)
View linked note
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/32
Last updated 12:41 AM on 11/27/22
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
33 Terms
1
New cards
Quarks
________: smaller particles that make up protons and neutrons.
2
New cards
Metals
________ are located to the left of the metalloids.
3
New cards
Nonmetals
________ are located to the right of the metalloids.
4
New cards
tremendous speeds
To study quarks, scientists accelerate charged particles to ________ and then force them to collide with- or smash into- protons.
5
New cards
Cloud
A(n) ________ of negatively charged electrons surrounds the nucleus of the atom.
6
New cards
Proton
The ________ has a positive charge and the neutron has no charge.
7
New cards
Neutrons
________: neutral particles that do not have an electrical charge.
8
New cards
Bubble Chambers
________ can be used by scientists to study the tracks left by subatomic particles.
9
New cards
Electrons
________: particles with an electrical charge of 1-
10
New cards
Mendeleev
________ discovered that the elements have a periodic pattern in their chemical properties.
11
New cards
Horizontal Rows of Elements
Periods: The ________ on the periodic table.
12
New cards
Scientists
________ hypothesize that electrons are not composed of smaller particles and are one of the most basic types of particles.
13
New cards
Periodic Table
________: the elements are arranged by increasing atomic number and by changes in physical and chemical properties.
14
New cards
Elements
________ have been named in a variety of ways.
15
New cards
strong nuclear force
Scientists theorize that an arrangement of three quarks held together with the ________ produces a proton.
16
New cards
Atoms
________ are composed of particles called protons, neutrons, and electrons.
17
New cards
Isotopes
________: Atoms of the same element that have different numbers of neutrons.
18
New cards
Electron Cloud
________: the area around the nucleus of an atom where its electrons are most likely found.
19
New cards
Energy Levels
All halogens have seven electrons in their outer ________.
20
New cards
Atom
the smallest piece of matter that still retains the property of the element
21
New cards
Nucleus
a small, positively-charged center of the atom
22
New cards
Protons
particles with an electrical charge of 1+
23
New cards
Neutrons
neutral particles that do not have an electrical charge
24
New cards
Electrons
particles with an electrical charge of 1-
25
New cards
Electron Cloud
the area around the nucleus of an atom where its electrons are most likely found
26
New cards
Atomic Number
The number of protons in an atom is equal to a number
27
New cards
Mass Number
the sum of the number of protons and the number of neutrons in the nucleus of the atom.'
28
New cards
Isotopes
Atoms of the same element that have different numbers of neutrons
29
New cards
Average Atomic Mass
the weighted-average mass of the mixture of its isotopes
30
New cards
Periodic Table
the elements are arranged by increasing atomic number and by changes in physical and chemical properties
31
New cards
groups
families
32
New cards
Electron Dot Diagram
uses the symbol of the element and dots to represent the electrons in the outer energy level
33
New cards
Periods
The horizontal rows of elements on the periodic table
Flashcards (87)