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AR Time
until 10:29
1
Student Planner Place this in the proper place
Work on essential Elements
Needed today in class:
Planner, pencil, notes, periodic table, period 2
AR book
End Planner
Entries
2
REVIEW OF LAST CLASS
January 30th
Summary: We had a standard
opening. We went over Essential
Element worksheet, took notes,
signed up for Superhero element.
Answer the last class’s EQ
which was:
Essential Question:
Identify characteristics of essential
elements.
.
Topic/Objective:
Name:
Electrons
Class/Period:
Date:
Feb 2, 2015
Essential Question: Identify traits of
electrons
Warm Up
1. Which of the following best
describes an atom?
A protons and electrons grouped
together in a random pattern
B protons and electrons grouped
together in an alternating pattern
C a core of protons and neutrons
surrounded by electrons
D a core of electrons and neutrons
surrounded by protons
2. Which of the following is found
farthest from the center of an atom?
A)nucleus
B) proton
C) neutron
D) electron
3. What is the name of the indicated
atom in the acetic acid molecule shown
below?
A) carbon
B) calcium
C) chromium
D) copper
O
CH3
C
O
H
4. Iron oxides, such as rust, form when
iron metal reacts with oxygen in the air.
What are the chemical symbols for the two
elements found in iron oxide?
A) I and O
B) Ir and O
C) Fe and O
D) Pb and O
Answers
1. Which of the following best
describes an atom?
A protons and electrons grouped
together in a random pattern
B protons and electrons grouped
together in an alternating pattern
C a core of protons and neutrons
surrounded by electrons
D a core of electrons and neutrons
surrounded by protons
1. Which of the following best
describes an atom?
A protons and electrons grouped
together in a random pattern
B protons and electrons grouped
together in an alternating pattern
C a core of protons and neutrons
surrounded by electrons
D a core of electrons and neutrons
surrounded by protons
2. Which of the following is found
farthest from the center of an atom?
A)nucleus
B) proton
C) neutron
D) electron
2. Which of the following is found
farthest from the center of an atom?
A)nucleus
B) proton
C) neutron
D) electron
3. What is the name of the indicated
atom in the acetic acid molecule shown
below?
A) carbon
B) calcium
C) chromium
D) copper
O
CH3
C
O
H
3. What is the name of the indicated
atom in the acetic acid molecule shown
below?
A) carbon
B) calcium
C) chromium
D) copper
O
CH3
C
O
H
4. Iron oxides, such as rust, form when
iron metal reacts with oxygen in the air.
What are the chemical symbols for the two
elements found in iron oxide?
A) I and O
B) Ir and O
C) Fe and O
D) Pb and O
4. Iron oxides, such as rust, form when
iron metal reacts with oxygen in the air.
What are the chemical symbols for the two
elements found in iron oxide?
A) I and O
B) Ir and O
C) Fe and O
D) Pb and O
Today’s Homework
Past due material: Cover sheet, Periodic
table, planners, vocab quizzes
Work on Essential Elements, Atomic
Superhero.
Atom of the day
56
42
Element:
Molybdenum
Protons: 42
Neutrons: 56
Electrons: 42
Electron
configuration:
2, 8, 18, 13, 1
Atomic Number: 42
Symbol: Mo
Most common
Isotope: 98Mo
Today
Notes
Essential Element information chart –
complete
Lab demonstration – Electrons
Video
Standard: 7
Periodic Table
9 121
Tuesday
January 25
Periodic Table
II. Groups have similar
properties.
Group 1: Alkali Metals-Most
reactive metals and the
least dense metals –Floats
on water
Group 2: Alkaline Earth
Metals-very reactive also
but not as much as group 1
Group 3-12: Transition
metals-very dense
Standard: 7
Periodic Table
9 121
Tuesday
January 25
Periodic Table
Group 17 Halogens –very
reactive non metals.
Group 18- Noble gases
(inert gases)- unreactive
nonmetals
Standard: 7
Periodic Table
9 121
Tuesday
January 25
Periodic Table
I.Similar Properties
• Periods –Elements across
the table. (left to right)
Standard: 7
Periodic Table
9 121
Tuesday
January 25
Periodic Table
I.Similar Properties
• Periods –Elements across
the table. (left to right)
• Groups or Families –
Elements in a column (top
to bottom)
Essential Element Chart:
1. Use your periodic table to find all the
information you can.
2 Calculate Neutron number by
subtracting Atomic Number from Atomic
Mass.