Blocks on the periodic table will not list a mass number of elements in this scenario.
<h3>What is Periodic table?</h3>
This table comprises of elements in order of their atomic number which determines their chemical properties.
It contains the atomic number but however doesn't contain the mass number of the elements.
Read more about Periodic table here brainly.com/question/15987580
#SPJ12
Answer:
1. 4
2. 2
3. 3
4. 1
Explanation: just did it on edge 2021
The molecule CO2 have 2 lone pairs located in the oxygen atoms. It has two double bonds also connecting carbon atom to the two oxygen atoms. It does obey the octet rule so the atoms need 8 electrons in each of them that is why electrons are shared.
Answer is B- He can arrange the beads into various formations using different colors and sizes multiple times
Explanation: I hope the helped!