Register
Plz help, science, open answer, if you cant help, don't answer.
200k views
5 votes
Plz help, science, open answer, if you cant help, don't answer.

Plz help, science, open answer, if you cant help, don't answer.-example-1
User Majid Shamkhani
by
5.3k points

2 Answers

4 votes
the atomic number of magnesium is 12 so there would be 12 protons and 12 electrons. you would then have to round the atomic mass at the bottom up or down giving you the mass number. subtract the number of protons from the mass number to give you neutrons. there is 12 neutrons
User RayOldProf
by
4.5k points
1 vote

Answer: i know one of them,

Sodium and Lithium

Explanation: hope this helps have an awesome day! :)

User Staskrak
by
5.4k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.6m questions

7.3m answers

Other Questions

How many pounds in a 3.00 l bottle of drinking water?
Compound A is an organic compound which contains Carbon, Hydrogen and Oxygen. When 0.240g of the vapour of A is slowly passed over a large quantity of heated Copper (II) oxide, CuO, the compound A is completely
Chlorine (Cl) forms a salt when it is combined with a metal. This element belongs in _____. group 18 group 17 period 18 period 17
In the following diagram for preparation of hydrogen gas as shown in the figure,what would happen if the following changes are made? (a) In place of zinc granules, same amount of zinc dust is taken in
When one substance changes into one or more new substances, it has exhibited a 1. chemical change. 2. chemical reaction. 3. physical change. 4. chemical property?
Link Copied!