Beat Rule 18 of the Password Game: Atomic numbers that add to 200

The Password Game by Neal.Fun requires concentration — especially when it comes to Rule 18. Solving Rule 18 requires you to strategically find atomic numbers that add up to 200. But what is an atomic number, and how can you make them equal an exact number?

Here’s how to beat Rule 18 of The Password Game and more about atomic numbers.

How to beat Rule 18 of The Password Game

To satisfy Rule 18 for The Password Game, you’ll have to choose any elements from the periodic table and have their atomic numbers added together to equal 200.

Each element on the periodic table has an atomic number, and you’ll likely already have a few in your password already—some intentionally, some by accident.

In my puzzle above, the elements V, Zn, and N were highlighted—but the only atomic element I actually entered was Zn to satisfy Rule 12. You may find this happens to you as well, whether it be due to needing a Roman numeral or because of a random element appearing in your captcha.

Fortunately, depending on how many atomic elements you’ve included, you may be one character away from resolving Rule 18. Here are some steps to follow once you have simplified your password:

1. Figure out and note down the numbers that should stay. These are your constant values that equal up to the Atomic number total. Check the table below for more Atomic values.
2. Add those constant values together to determine your Atomic total.
3. Subtract that Atomic total from 200.
4. Then add in the Atomic number(s) to get from the sum of the Atomic total to 200.
5. This will then satisfy the rule.

Below, we’ve included a table with a list of all atomic numbers for each element. If you find you are over the limit, keep in mind most of the rules aren’t case-sensitive whereas atomic elements are. Simply dropping to lowercase for the element will remove it from the overall count to 200, which may free you up to add another symbol.

Atomic number list for The Password Game: