Unit 3 The periodic table and trends

The modern periodic table is organized by increasing

• atomic number

• atomic mass

• atomic size

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The energy needed to remove an electron is called _____.

• Electronegativity

• Ionization Energy

• Electron Affinity

Electrons will go into the highest energy first.

• True

• false

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How many total orbitals are in the 2nd energy level? Hint: there is more than 1 sublevel in the 2nd energy level.

• 1

• 3

• 5

• 4

What types of atomic orbitals are in the 4th energy level?

• s only

• s and p only

• s, p, and d only

• s, p, d, f

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In 3p⁴ ,what does the 3 stand for?

• Energy level

• sublevel

• Number of electrons

• Spin of the electron

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In 3p⁴ ,what does the 4 stand for?

• Energy level

• sublevel

• Number of electrons

• Spin of the electron

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Which has the greater EN: 
Cl or Al?

• Cl
• Al

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Which has the greater EN: 
Si or C?

• C
• Si

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Which of the following will have a larger radius than Zinc?

• Gallium
• Aluminum
• Magnesium
• Strontium

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