Do the elements in group 7 of the periodic table react with metals to form covalent compounds, ionic compounds, neither, or both?

What metric units would you use to measure the thickness of a key

What is the correct lewis dot structure for arsenic?

Use the de broglie's wave equation to find the wavelength of an electron moving at 4.5 × 106 m/s. show your work. note: h= plank's constant (6.62607 x 10-34 j s)