Question 6: what do i fill in the blank space? what are the units?

1. 393 K

2. 81 °C

3. 348 K

4. 129 K

5. 311 °C

Explanation: To convert °C to Kelvin K = °C +273 . And for Kelvin to degree Celsius °C = K- 273.

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.