University:
Dakota State University
Course:
CHEM 112 | General Chemistry I
Academic year:

2019
Views:

316

Pages:

1
Author:

palangresq3v

KEY Periodic Table Name - ______________________ 1.) List three pieces of information besides an element’s name and symbol that are recorded on a typical periodic table. - ionic charge (combining capacity) - atomic mass - atomic number 2.) State how many protons are present in each of the following atoms: a.) Silicon - _____14_____ b.) Chromium - _______24______ c.) Iodine - _____53_____ 3.) List the following elements by atomic mass from lightest to heaviest: zinc, calcium, cobalt, nickel, carbon. Write the atomic mass beside each one. Lightest __carbon – 12.01__, __ calcium – 40.08__, __ nickel – 58.69__, __ cobalt – 58.93__, __ zinc – 65.39__ heaviest. 4.) What is the most common ion charge of chromium? Chromium has two charges of +2 and +3. The +3 is written first reading from left to right so the +3 is more common. 5.) Where on the periodic table do you find the: a.) metals – on the left of the “steps”. b.) non-metals – on the right of the “steps”. c.) metalloids – Up and down both sides of the “steps” for one row out only.