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Science 8 > Periodic Table > Flashcards

Periodic Table Flashcards

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1
Q

How does melting point change over a period?

A

Melting points increase and then decrease across a period

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2
Q

Where are metals located on the periodic table?

A

On the left side/middle

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3
Q

Where are nonmetals located?

A

On the right side of the PT

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4
Q

Where are metallics located?

A

Between nonmetals and metals on the PT

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5
Q

Name all the parts of an element key

A

Element name, atomic number, symbol, atomic mass, and state of matter

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6
Q

Explain how sodium and chloride affect humans

A

They are both an essential part of our daily diet

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7
Q

What do elements in the same group have in common?

A

They have similar chemical properties and react with different elements in similar ways

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8
Q

What can the group of an element tell you

A

How many electrons are in the outer shell

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9
Q

What does the period of an element tell you

A

How many electron clouds there are

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10
Q

What are some properties of metals?

A

They are shiny and conduct thermal energy and electricity

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11
Q

What are some properties of nonmetals?

A

They are usually gases and don’t conduct energy

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12
Q

Name some properties of metaloids

A

They share common properties with both metals and nonmetals

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13
Q

What is group 1 on the PT

A

Alkali metals

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14
Q

What are some properties of alkali metals?

A
  • react quickly with other elements
  • only occur in compounds
  • react violently with water
  • soft enough to be cut
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15
Q

Group 2 on the periodic table is called…

A

Alkaline earth metals

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16
Q

Name some properties of alkaline earth metals

A
  • pure ones don’t occur naturally/always in compounds

- reactive

17
Q

Groups 3-12 on the periodic table

A

Transition elements

18
Q

Name some properties of transition elements

A
  • they’re all metals, have high melting points
  • greater strengths and densities than the others
  • good for building materials
  • used to add color
19
Q

Group 17 on the periodic table

A

Halogens

20
Q

Name some properties of halogens

A
  • refers to an element that can react with metal and form salt
  • easily form compounds
  • less reactive as you move down
21
Q

Most common element in the universe

A

Hydrogen

22
Q

Most abundant metaloid in the universe

A

Silicon

23
Q

How are elements arranged on the periodic table?

A

They are arranged into columns and groups according to an elements properties

Science 8 (5 decks)

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