Unit 1 the atom
Presentation
•
Chemistry
•
10th - 12th Grade
•
Easy
Standards-aligned
Ursula Kirchner
Used 1+ times
FREE Resource
6 Slides • 8 Questions
1
Unit 1 the atom
Subatomic particles
2
A matter of scale
Click the video and watch, then answer the questions on the next slide
3
Open Ended
How are the powers of 10 defined? What does it mean when one object is 1 x10-14 meters in size?
4
The atom is the smallest particle of matter
Atoms consist of protons and neutrons in the nucleus and electrons in orbitals around the nucleus at different energy levels which correspond to the rows on the periodic table
5
The nucleus of the atom has protons and neutrons and makes up almost all the mass of an atom. The unit is atomic mass unit or amu for short. Each proton and neutron is also composed of quarks.
A quark (/kwɔːrk, kwɑːrk/) is a type of elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei.
6
The particles inside an atom important facts
Atomic mass unit is the unit of measure (amu)
protons have a positive charge +p
neutrons have a neutral charge 0n
electrons have a negative charge -e
protons and neutrons each have 1 amu masselectrons have really small mass 1/1840 amu
7
What did you learn questions for understanding
go to next slides
8
Multiple Select
The particles in the nucleus of an atom are called?
protons
neutrons
electrons
Both neutrons and protons
all of the above
9
Fill in the Blanks
Type answer...
10
Fill in the Blanks
Type answer...
11
Multiple Choice
The neutral atom must have the same number of protons and electons true or false?
True
False
12
Multiple Choice
The neutral atom must have the same number of protons and electrons, but can have a different number of neutrons: true or false?
True
False
13
Multiple Choice
All of the mass of the atom is in the
nucleus
orbitals
protons only
neutrons only
14
Multiple Choice
All of the mass of the atom is in the
nucleus
orbitals
protons only
neutrons only
Unit 1 the atom
Subatomic particles
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