Bohr Atomic Model - Warm-ups or Exit Cards - Protons, Neutrons & Electrons

Grade Levels
7th - 10th
Standards
Formats Included
  • PDF (18 pages)
  •  Activity
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Easel Activity Included
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Description

10 versatile mini-assignments so students can easily demonstrate that they know how to determine the number of protons, electrons and neutrons for any given element and that they can draw the Bohr’s atomic model for the first 18 elements.

Bonus! – Card 11 leaves the number of protons blank so that you can have students practice whichever of the first 18 elements you would like and as many times as you would like.

The vocabulary words reinforced are:

• atomic number

• atomic mass

• protons

• electrons

• neutrons

• energy level

I use these assignments as warm-ups, exit cards and graded mini-reviews.

Total Pages
18 pages
Answer Key
Included
Teaching Duration
N/A
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Standards

to see state-specific standards (only available in the US).
NGSSMS-PS1-1
Develop models to describe the atomic composition of simple molecules and extended structures. Emphasis is on developing models of molecules that vary in complexity. Examples of simple molecules could include ammonia and methanol. Examples of extended structures could include sodium chloride or diamonds. Examples of molecular-level models could include drawings, 3D ball and stick structures, or computer representations showing different molecules with different types of atoms. Assessment does not include valence electrons and bonding energy, discussing the ionic nature of subunits of complex structures, or a complete depiction of all individual atoms in a complex molecule or extended structure.
NGSSHS-PS1-1
Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms. Examples of properties that could be predicted from patterns could include reactivity of metals, types of bonds formed, numbers of bonds formed, and reactions with oxygen. Assessment is limited to main group elements. Assessment does not include quantitative understanding of ionization energy beyond relative trends.
Determine the meaning of symbols, key terms, and other domain-specific words and phrases as they are used in a specific scientific or technical context relevant to grades 6–8 texts and topics.

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