they are made by of two types of elementary particles
electrons and quarks
quetion answered by
(jacemorris04)
Answer:

Explanation:
The unbalanced nuclear equation is

Let's write X as a nuclear symbol.

The main point to remember in balancing nuclear equations is that the sums of the superscripts and of the subscripts must be the same on each side of the reaction arrow.
Then
235 = 4 + A , so A = 235 - 4 = 231, and
92 = 2 + Z , so Z = 92 - 2 = 90
And your nuclear equation becomes

Element 90 is thorium, so

Explanation:
If you have chipped or broken glassware then it is very important that you should take precaution yourself by conveying about it to your teacher and class mates.
By doing so you are making everybody aware to be cautious of the chipped or broken glassware.
Also, it is advised that you should dispose of it in the designated glass waste area.
Therefore, we can conclude that all actions that you should take if you have chipped or broken glassware as as follows.
- Dispose of it in the designated glass waste area.
The system will adjust itself in order to resist the change.
Explanation:
- Frenchman Le Chatelier in 1888 is credited with the Le Chatelier's principle
- His principle is a summary drawn from his findings on various factors that affects equilibrium.
- The principle states that "if any of the conditions of a system in equilibrium is changed, the system will adjust itself in order to annul the effect of the change".
- It is used to explain the effect of stress by applying change on a system.
- The changing conditions are usually concentration, temperature and pressure.
Learn more:
Chemical equilibrium brainly.com/question/10838453
#learnwithBrainly
The answer is C. 7.30 x 10^-7