5--Periodic Table & Forces of Attraction

The elements known as precious metals are __________

In general, electrons that are closer to the nucleus have ______ energy than those further from the nucleus.

The atomic number represents the

The principle quantum number tells us something about the _____________ an electron has

Flourine is a halogen. It is the _________ reactive element and the __________ electronegative element.

The periodic table is organized according to how electron orbitals are filled

In general, within a period the more protons you have, the greater the attraction nucleus has for the electrons in orbit

The further the valence electrons are from the nucleus, the _______ force there is holding onto the electrons.

The inability to know both the position of an electron and its momentum is called the Heisenberg Uncertainty Principle

Lanthanides are often used in

Metals generally

As you go from left to right in a period on the periodic table, electronegativity

Alkali metals

The acid HF is very dangerous and is used to

The actinide elements are all

The transition metals are ________ conductors with ________ melting points

An electron orbital that is shaped like the image below is likely a(n) ____ orbital.

The more certain we are of an electron's position, the less accurate we can be about its momentum

Metals are generally

The lanthanide and actinide elements are also known as

Groups 3-12 are called the

The three main groupings of elements are

Halogens tend to react with other elements to form

Group 1 elements include potassium and _________ among others

The shorthand system of writing chemical element names as one or two letter abbreviations are called

Elements with the same number of valence electrons generally behave

A level 3 electron has a ________ energy level than a level 1 electron

Atomic radii tend to ___________ from left to right on the periodic table

The amount of energy required to remove an electron from an atom is the

Group 17 elements tend to be diatomic. This means

Hydrogen sits at the top of the group 1 elements. It ...

The ____________ is the area where we are likely to find a given electron at a given time.

If two hydrogen atoms (H₂) have a distance from one to the other of 90 pm, then the atomic radius of hydrogen would be

There are only two electrons in any given orbital subshell.

Alkali metals

The halogen that we eat regularly and is essential for life is

Metals are generally

The strength of the attraction of the nucleus for electrons is measured as

Thre are _____ groups of elements on the periodic table

Elements in the same periods on the periodic table have the same number of orbitals or shells

Helium is the second most abundant element in the universe. It is a member of the ___________________.

The vertical columns in the periodic table are called

Metals are generally found in/on the _________ of the periodic table

Group 1 elements have _______ valence electron(s)

The size of an atom is measured by its atomic radius

Group 2 on the periodic table is called the

The noble gas Neon is __________ to react with lithium.

Transition metals differ from other elements because

The "Father" of the periodic table was

Alkaline Earth metals are _______________ than alkali metals

Nonmetals are generally found in/on the _________ of the periodic table

How electrons are arranged within an atom is called the

Nonmetals generally

The lanthanide and actinide elements will

Group 17 is known as the _______________

The metal with the lowest melting point is

The horizontal rows in the periodic table are called

All s orbitals have a __________ shape

Alkaline earth metals have _____ valence electron(s).

Members of a group in the periodic table all have

The group 18 elements are also known as the ______ gases or ________ gases.

Elements in the periodic table are arranged in increased order of

This chart shows

As you go from top to bottom in a group on the periodic table, electronegativity

Within a row (period) on the periodic table, ionization energy __________ from left to right

Electrons are arranged in levels called "shells" or orbitals. Electrons in a shell have a similar amount of energy.

Thre are _____ periods of elements on the periodic table

Electrons fly around in different orbitals, based on their energy. Those closest to the nucleus are in the s orbital.

Semi-metals have properties of both metals and nonmetals

Within a column (group) on the periodic table, ionization energy __________ from top to bottom.