3-1-2.3 Flame Test, Periodicity and Bonding Review

An atom that has 7 valence electrons is in which group?

• alkali metals

• alkali earth metals

• halogens

• noble gases

Tags

NGSS.HS-PS1-1

When do electrons emit a photon?

• As they go from an excited state to ground state

• As they go from ground state to excited state

• As they absorb energy

• As they bump into one another

Tags

NGSS.HS-PS4-3

This element has 1 valence electron and 4 shells

• Cl (Chlorine)

• Aluminum (Al)

• Sodium (Na)

• Potassium (K)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element has the higher electronegativity?

• Fluorine

• Chlorine

Tags

NGSS.HS-PS1-2

Identify the unknown

• Hydrogen

• Helium

• Oxygen

Tags

NGSS.HS-PS1-1

NGSS.HS-PS4-1

NGSS.HS-PS4-3

What element is this a possible Lewis Dot diagram of?

• Lithium (Li)

• Boron (B)

• Phosphorous (P)

• Oxygen (O)

Tags

NGSS.MS-PS1-1

Which is the group than contains compounds that will all emit a similar color if heated in a flame?

• Group 1: CuSO₄, BaSO₄, MgSO₄

• Group 2: K₂SO₄, KCl, BaCl₂

• Group 3: Li₂SO₄, BaSO₄, LiCl

• Group 4: BaSO₄, BaCl₂, Ba(NO₃₎₂

As you go across a period from left to right, ionization energy tends to

• increase

• decrease

• stays constant

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Choose the element with the largest atomic radius

• Hydrogen (H)

• Helium (He)

• Lithium (Li)

• Potassium (K)

Which group would have the HIGHEST electronegativities

• Halogens

• Alkali Earth Metals

• Alkali Metals

• Noble Gases

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2