Periodic Table and Electron Configuration

The term valence electron refers to…

• The total number of electrons in an atom

• The electrons in the first energy level

• The electrons in the outermost energy level

• Electrons that are found in the nucleus

The group number of an element corresponds to...

• The number of electrons

• The number of valence electrons

• The number of energy levels

• The number of protons

Elements in Group 6 of the periodic table would have how many valence electrons?

• 2

• 6

• 8

• Unable to tell from the given information

Elements located in groups 7 & 8 tend to be classified as ________________

• Non-Metals

• Metalloids

• Metals

• Noble Gases

Use the picture at right to answer the question.  Given the Lewis Dot structure, which of the following elements could the unknown (X) represent?
X\cdot 

• B

• C

• K

• Ca

Tags

NGSS.HS-PS1-1

Which group on the periodic table is known as the Alkaline Earth Metals?

• Group 1

• Group 2

• Group 7

• Group 8

Which element is located in Group 3, Period 2?

• Magnesium

• Lithium

• Helium

• Boron

Which element has a total of 4 energy levels, with only one valence electron in its fourth energy level?

• Potassium

• Rubidium

• Carbon

• Silicon

Which element has the electron configuration 6s¹ ?

• Rb

• Tl

• He

• Cs

Tags

NGSS.HS-PS1-1

The electronegativity of an element is defined as…

• The ability of an atom to gain or attract additional electrons.

• The energy required to remove an electron from an atom.

• The ability of an element to chemically react with other elements or compounds.

• The size of an atom of a particular element.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2