Free Response 1  The element neon (Ne) is a colorless gas that exhibits an orange-red glow when placed in an electric field, making it useful in signs. Ne has a melting point of -249 oC and boiling point of -246 o Part A. Please show Ne and its interactions at -247 oC and -200 oC.  Please label all interactions (ie. London dispersion forces and/or covalent bonds) at each temperature and label the states of matter. Be sure to include a key. Part B. Please explain, using your understanding of forces and energy, what is happening on the molecular level as Ne is heated from –247 oC to -200 oC as shown in Part A.  (Use 1-2 sentences)  

Use the periodic table below to determine what the arrows are pointing to. Table of Choices   Arrow A Arrow B Arrow C A alkaline earth metals a non-metal halogens B alkali metal a non-metal noble gases C alkali metals a transition metal noble gases D alkaline earth metal a transition metal halogens E a non-metal a transition metal noble gases

Below is an isotope notation of element A. Determine the number of protons, neutrons, and identify the element.   Protons Neutron Element A 29 65 Copper (Cu) B 36 29 Krypton (Kr) C 36 65 Krypton (Kr) D 65 29 Terbium (Tb) E 29 36 Copper (Cu)

The graph represents how the potential energy changes with respect to two species interacting. Determine which of the following statements are true about the graph below. The graph shows electrostatic attraction The graph shows electrostatic repulsion The two species have charges of the same sign.

Use the periodic table below to determine what the arrows are pointing to.  Table of Choices   Arrow A Arrow B Arrow C A alkaline earth metals a non-metal noble gases B alkali metal a non-metal halogens C alkali metals a transition metal halogens D alkaline earth metal a transition metal noble gases E a non-metal a transition metal halogen

The graph below represents how the potential energy changes with respect to two atoms interacting. Which statement correctly describes the system at point Z?

Below is an isotope notation of element Z. Determine the number of protons, neutrons, and identify the element. Table of Choices   Protons Neutron Element A 28 59 Nickel (Ni) B 59 28 Praseodymium (Pr) C 28 31 Nickel (Ni) D 31 59 Gallium (Ga) E 31 28 Gallium (Ga)  

In a trisomic individual, such as a person with trisomy 21 (Down syndrome), a genetic imbalance occurs because:

A community health nurse is teaching a class about the U.S. healthcare system. Which of the following is not a component of the private healthcare system?

Which of the following study designs examines past events or exposures to investigate their relationship with a current outcome or condition?