How many neutrons and electrons are in ruthenium??? PLEASE HELP IM DROWNING IN WORK!!!!!

2 answers:

6 0

The Ruthenium Ru is a chemical element belonging to the Platinum group. If you look on the periodic table, his atomic number is Z=44. Atomic number represents too the number of Protons, and since an atom is electrically neutral, the number of protons is equal to the number of electrons. So Ruthenium got 44 electrons.
The mass number of the ruthenium based on the periodic table is A=101.
A = Z+N with N the number of neutrons. So N = A-Z = 101 - 44 = 57.
So the Ruthenium contains 57 neutrons.

Just for more information, the Ruthenium is commonly used in Jewelry and in electricity in case of severe wear resistance.

Hope this Helps! :)

Ierofanga [76]3 years ago

5 0

57 nuetrons and 44 elctrons just incase you need it there are 44 protons too.Hope this halps

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Z. A force that gives a 8-kg objet an acceleration of 1.6 m/s^2 would give a 2-kg object an

Paladinen [302]

Answer:

$\boxed {\boxed {\sf D.\ 6.4\ m/s^2}}$

Explanation:

We need to find the acceleration of the 2 kilogram object. Let's complete this in 2 steps.

<h3>1. Force of 1st Object </h3>

First, we can find the force of the first, 8 kilogram object.

According to Newton's Second Law of Motion, force is the product of mass and acceleration.

$F=m \times a$

The mass of the object is 8 kilograms and the acceleration is 1.6 meters per square second.

m= 8 kg
a= 1.6 m/s²

Substitute these values into the formula.

$F= 8 \ kg * 1.6 \ m/s^2$

Multiply.

$F= 12.8 \ kg*m/s^2$

<h3>2. Acceleration of the 2nd Object </h3>

Now, use the force we just calculated to complete the second part of the problem. We use the same formula:

$F= m \times a$

This time, we know the force is 12.8 kilograms meters per square second and the mass is 2 kilograms.

F= 12.8 kg *m/s²
m= 2 kg

Substitute the values into the formula.

$12.8 \ kg*m/s^2= 2 \ kg *a$

Since we are solving for the acceleration, we must isolate the variable (a). It is being multiplied by 2 kg. The inverse of multiplication is division. Divide both sides of the equation by 2 kg.

$\frac {12.8 \ kg*m/s^2}{2 \ kg}= \frac{2\ kg* a}{2 \ kg}$