Unit 2 lesson 2: subatomic particles

​TUESDAY 9/6: UNIT 2 – INTRO TO ATOMIC STRUCTURE,

HISTORY OF THE ATOM

• MON 9/12 QUIZ: 35 ELEMENTS

• THURS 9/15- LAB: FLAME TEST/ SPECTRAL ID-You must have your lab safety form turned in

• Fri 9/16 & 9/23 are PLD days

• JV football home game at park west on Thursday!​

Announcements/Reminders

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Bellwork:

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Agenda

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ON GC​

• ELEMENTS & SUBATOMIC PARTICLES

• PACKET PAGE 3&4

• Begin pre-lab questions on page 5 (will finish in class tomorrow)

Multiple Choice

The nucleus of an atom contains which subatomic particles?

• protons and electrons

• protons and neutrons

• electrons and neutrons

• protons, electrons, and neutrons

Multiple Choice

Which subatomic particle is counted to determine the type of element the atom represents?

• proton

• neutron

• electron

• boron

Multiple Choice

If the atomic mass is not given, how do we calculate it?

• (protons) + (electrons)

• (atomic mass) - (atomic number)

• (protons) - (neutrons)

• (protons) + (neutrons)

Multiple Choice

Carbon has an atomic # of 6 and a mass of 12, how many neutrons does it have?

• 8

• 6

• 12

• 18

Multiple Choice

Rb has a mass of 85 and an atomic number of 37, how many neutrons does it have?

• 85

• 37

• 48

• 122

Multiple Choice

What is the atomic # of an atom with 51 neutrons and a mass of 91?

• 91

• 51

• 142

• 40

Multiple Choice

How many protons are in an atom of manganese?

• 50

• 54.938

• 25

• 109.876

Multiple Choice

What mass does a neutron have?

• 1 amu

• 0 amu

• -1 amu

• +2 amu

Multiple Choice

Sodium has an atomic number of 11, how many protons does this atom have?

• 22
• 11
• 12
• 2

Multiple Choice

The mass of this particle is so small that it is not counted toward the mass of an a atom.

• proton
• electron
• neutron
• quark

Multiple Choice

True or False - Protons and Neutrons have about the same mass.

• True - They have about the same mass
• False - They do not have about the same mass

Multiple Choice

________________ have a positive charge, ___________________ have NO charge, and _____________________ have a negative charge.

• Protons, Electrons, Neutrons

• Neutrons, Electrons, Protons

• Protons, Neutrons, Electrons

• Electrons, Neutrons, Protons

• WORK ON PAGE 3&4 IN PACKET (FINISH FOR HW)

• Quiz Monday on the 35 elements on page 3.  You must know the name and symbol for all of them.

• Symbols are written with 1 capital letter, or 1 capital and 1 lowercase ex.:

  • H

  • He

• YES, SPELLING COUNTS!

• If you finish pages 3&4, begin pages 5-6