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How does sp³ hybridization affect the bond angles in a molecule?

What are the coordinates of point 9?

True or False: The atomic radius of sodium (Na) is larger than the atomic radius of lithium (Li).

Based on the experimental data provided, how does the cooling rate of steel affect its hardness?

Which of the following elements has a higher electronegativity: sulfur (S) or selenium (Se)?

9- List elements below based on the size from the smallest to the biggest (4 points). Sn, Si, F, S      

5- Consider series of elements below and answer questions (6 points):   C, Ne, K, Ca, Cl, Fe   Which one is an alkali metal? Which one is a noble gas? Which one is a halogen?        

Fill in the blanks (6 points):   When an atom loses electrons it is called …………    (cation or anion) The neutral sub-particle of atom is called…… The protons in atoms are located in a part of atom called ……..

Based on the image below, what is your answers to the following: (Answers must be written in your own words to receive credit) 1. Diagnosis 2. Mechanism of injury 3. Examination 4. Imaging 5. Associated injuries 6. Treatment

What are the four muscles that make up the rotator cuff?