1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
KiRa [710]
3 years ago
8

How many electrons are in the element that comes just before platinum in the periodic table?

Physics
1 answer:
laila [671]3 years ago
7 0

The element is iridium and it has 77 electrons

You might be interested in
An adult (mass 98.36kg) is standing on top of a 4.45m cliff right next to a river. He grabs a vine of length 30.1m, which the po
Tom [10]

Answer:

1. 2.98m/s

2. 0.28m

Explanation:

The energy equation would work great in this scenario:

E=K+U. Since all of our energy comes from gravitational potential energy, and we are interested in finding the kinetic energy, all our mechanical energy must be in kinetic form, therefore:

mgy=1/2mv^2+0\\98.36*4.45=1/2*98.36*v^2\\437.7=49.18v^2\\8.9=v^2\\2.98=v

We can use energy to find max height.

For energy, set the equation E=K+U as 437.7=(mass adult+mass senior)gh:

437.7=155.89gh\\\\2.8=gh\\0.28=h

8 0
2 years ago
Whats is your name boy and girl
azamat

Answer:

lol what.

Explanation:

7 0
3 years ago
Read 2 more answers
In a series circuit, each circuit element has the same:a.currentc.capacitanceb.voltaged.resistance
VARVARA [1.3K]

In a series circuit, each circuit element has the same current. The answer is letter A. This is because the electrons flowing in a current has only a single path to follow. There are no other path that the current moves along.

8 0
4 years ago
If the electrons are attracted more by the nucleus because of an additional proton, what would happen to it?
Rus_ich [418]

Answer:

orbital speed of the electrons in their orbit will increase

Explanation:

As we know that centripetal force for electrons will be due to electrostatic attraction force of electron.

So it is given as

F_e = F_c

so we have

\frac{(Ze)(e)}{4\pi \epsilon_0 r^2} = \frac{mv^2}{r}

now on the left side if the force of attraction will increase and hence there must be the change in that part of equation

So here at the same position the speed of the electron

So we can say that correct answer will be

orbital speed of the electrons in their orbit will increase

4 0
3 years ago
Which of the following is a source of thermal energy that is absorbed by Earth's atmosphere?
Mazyrski [523]

Answer:

100% of the energy entering earth's atmosphere comes from the sun. ~50% of the incoming energy is absorbed by the earth's surface i.e. the land and oceans.

8 0
3 years ago
Other questions:
  • Give three examples of unbalanced forces in your everyday life. HELP FAST PLZ
    5·2 answers
  • Shawna is very knowledgeable about cars​
    9·1 answer
  • If an electron is released from rest in a uniform electric field, the electric potential energy of the charge-field system does
    14·1 answer
  • 5.00 L of a gas is collected at 22.0 'C and 745.0 mmHg . When the temperature increases to 35'C what is the new pressure
    13·1 answer
  • Now let’s apply our problem-solving strategy to a system in equilibrium. To improve the acoustics in an auditorium, a sound refl
    8·1 answer
  • a ball of 150 grams is hit with a bat the ball starts travelling with a velocity of 3m/s what is the momentum of the ball
    11·1 answer
  • PE (potential energy) + KE (kinetic energy) will equal ME (mechanical energy) ... explain this in your own words, or by using an
    8·2 answers
  • True or false: Only people that hold opinions of the group should get to express their opinion.
    5·1 answer
  • A vector A⃗ has a magnitude of 40.0 m and points in a direction 20.0∘ below the positive x axis. A second vector, B⃗, has a magn
    8·1 answer
  • What is the best example of potential energy?water flowing in a rivera puddle of water on the floora block of frozen ice on the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!