Periodic table

Ionization energy is the energy required to remove ____ from an atom of an element.

• the electron cloud

• the nucleus

• an electron

• an ion

Increase Atomic Radius when you move ______________ across the periodic table.

• up and left

• down and left

• up and right

• down and right

Atoms that lose electrons to form positive ions are __________.

• a. nonmetal

• b. metal

• c. metolids

• d. it is an element right?

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is a cation?

• H-1

• Na+1

• Cl

• None

The periodic law states that

• no two electrons with the same spin can be found in the same place in an atom.

• the physical and chemical properties of the elements are functions of their atomic numbers.

• electrons exhibit properties of both particles and waves.

• the chemical properties of elements can be grouped according to periodicity but physical properties cannot.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Mendeleev predicted that the spaces in his periodic table represented

• permanent gaps.

• undiscovered elements.

• radioactive elements.

• isotopes.

What characteristic do atoms in the same group of elements share?

• They have the same atomic mass.

• The have the same number of electron orbitals.

• They have the same number of valence electrons.

• They have only similar physical properties.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Choose more than one: Which of these are metals

• shiny

• conductive

• Non conductive

• lose an electron

• gain an electron

Choose more than one: Which of these are non metals

• dull

• conductive

• Non conductive

• lose an electron

• gain an electron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Choose more than one: Which of these are metalloids

• dull

• shiny

• semi conductive

• lose an electron

• gain an electron