Periodic table

The original periodic table was made using the

• Atomic mass

• Atomic number

• Metal or non-metal system

• Using the basic chicken nugget method and see how the element reacts the more reactive the higher it went on the chart

What is the element that has the atomic mass of one

• Hydrogen

• Helium

• Arsenic

• Ununpentium

What are the three types of categories for a element

• Metals, Metalloids, and Nonmetals

• Solids, Liquids, gases

• Families, groups, and periods

What does a column in the periodic table stand for?

• Nothing just how it was made

• The groups or families

• A period

• It shows there atomic mass

Helium is named after the ___

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

What is the name of a row on the periodic table

• A periodic line

• A family or group

• A period

• Table grids

What does the number above the elements mean in the periodic table?

• It is the number of protons in the nucleus

• It is the atomic mass

• It is the number of Neutrons

• It is a random number assigned to a element

Who created the original periodic table

• Dmitri Mendeleev

• Henry Moseley

What does mass measure

• The weight in a object

• The amount of matter in a object

• The amount of gravity being extorted

• It measures how far your car goes

What are alkali metals

• very soft and shiny Common ones---Sodium, Potassium

  1 outer level electron low density

  In nature, always found combined with other elements due to reactivity.

• fairly hard silver good conductors

  common ones---Magnesium, calcium

  2 outer level electrons

• go from fairly reactive to barely reactive

  hard and shiny

  good conductors common ones---iron, copper, silver, gold, nickel

  higher densities and melting points than Groups 1 and 2

  Located at the bottom to keep the table from becoming too wide…

• shiny, reactive metals

  some used to make steel

• All are radioactive or unstable

  All after plutonium do not occur in nature-are man-made 

  (synthetic)

Tags

NGSS.MS-PS1-2