Periodic Table

Electrons on the outer energy level are called

Electrons on the __________ levels are the first to move in chemical reactions.

Hydrogen is an exception because its properties

Vertical columns on the table are called

Elements in groups 3-12 that can be found uncombined in nature and are usually shiny/malleable

These have 2 valence electrons, are shiny, malleable, not found alone in nature, and reactive

Elements in grey at the bottom of the table with no confirmed mass or name

Synthetic elements are elements that were

Atoms are usually

The valence electrons determine the element's

flourine, chlorine, bromine, and iodine are examples of

Being able to be pulled into wires is the property of

Electrons occupy energy levels in predictable patterns.

Mendeleev organized it by

Helium, neon, xenon, and argon are examples of

Periodic means

Elements that have 7 valence electrons, combine with metals to form salts, & are very reactive

When two atoms of the same element are chemically bonded, it is called

Elements in the same group share the same number of

The inner transition metals include the radioactive actinides and the

Being able to be hammered into thin sheets is the property of

When a nucleus breaks down and gives off energy naturally, you have a

Understanding more about the elements allows us to better understand how the universe happened.

Hydrogen is an exception because its properties

Electrons are located in

The periodic table is now organized by

The electrons on the inner energy levels have ________ energy than the ones on the outside.

These have 1 valence electron, are shiny, ductile, conduct well, soft, and reactive with water.

Being shiny, malleable, ductile, and having good conductivity describes

The first energy level is stable when it contains

Hydrogen is part of group

Energy levels 3 and higher can contain more than 8 electrons.

Electron dot diagrams, or Lewis Structures/Models show

Transuranium elements are found after uranium on the table, are radioactive, and

Semiconductors are elements that conduct electricity under

Who was the first to organize a periodic table of the elements?

Elements that have full outer levels making them stable and nonreactive are

Horizontal rows on the table are called

The elements in group _____ have 8 outer electrons and are stable.

Bonding nonmetals with nonmetals creates

Elements that are either gases, or not malleable and not good conductors are

You can easily determine the number of valence electrons in an element by looking at its

Metallic bonds are created when metals bond with

The iron triad includes iron, cobalt and

Energy levels beyond the first level are stable when they contain

Different molecular structures of the same element are called

Common diatomic molecules are hydrogen, nitrogen, and

Metals and nonmetals bond with

Elements that share properties of metals and nonmetals and can form ionic or covalent bonds

Metallic bonds can occur because the electrons are