What determines an element's properties? ANSWER: A. The valence electrons

A. The valence electrons

B. The isotopes it forms

C. Its atomic mass

D. The core electrons

Compare and contrast physical changes with chemical changes.

What is the area in square meters of 448 g ai foil that has a thickness of 23921 nm? the density is 2.70 g/cm

Use the measurements in the table to determine which unidentified metal has the highest density. metal volume mass a 10.5 cm3 122 g b 14.2 cm3 132 g c 16.1 cm3 115 g d 12.7 cm3 126 g