Chem Review of 1st Nine Weeks

an arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column and properties repeat from row to row

• Periodic Table of Elements

• Atomic Theory

• Isotopes

• Subatomic Particles

List the two most reactive families on the periodic table.

• Alkali metals & Transition Metals
• Noble gases & Oxygen Family
• Halogens & Alkali metals
• Halogens & Noble gases

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Which of the following will have a higher electronegativity than arsenic (As)?

• Carbon (C)
• Neon (Ne)
• Antimony (Sb)
• Germanium (Ge)

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Which of the following will have a lower ionization energy than Scandium (Sc)?

• Helium (He)
• Titanium (Ti)
• Calcium (Ca)
• Magnesium (Mg)

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USE THE PERIODIC TABLE

How many valence electrons does carbon have?

• 4

• 12

• 6

• 14

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USE THE PERIODIC TABLE

How many valence electrons does Phosphorus have?

• 31

• 5

• 15

• 4

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Which of these is a property of metals?

• It's malleable
• It can't conduct electricity
• They are used in food
• It's very brittle

Which of these grouping of elements could have the characteristic of brittle?

• Metal
• Nonmetal

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Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? 

• Metal
• Nonmetal
• Metalloid
• Pretty

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Which element is least likely to conduct heat and electricity? 

• O
• Si
• Po
• Ca

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