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
Mumz [18]
2 years ago
12

Mercury is in the 80th position in the periodic table. How many protons does it have?

Physics
2 answers:
ipn [44]2 years ago
3 0

Number of Protons = Atomic number = 80

so, Mercury has 80 protons...

Lera25 [3.4K]2 years ago
3 0

Answer: 80

Explanation:

Elements are arranged in periodic table in order of increasing atomic number.

Atomic number is defined as the number of protons or number of electrons that are present in an atom.

Atomic number = Number of electrons = Number of protons

Mercury (Hg) is a d block element and its atomic number is 80, thus it contains 80 protons and 80 electrons.

Electronic configuration represents the total number of electrons that a neutral element contains. We add all the superscripts to know the number of electrons in an atom.

Electronic configuration of mercury in terms of noble gas configuration is [Xe]4f^{14}5d^{10}6s^{2}.

You might be interested in
Lab number 14: sudden stops hurt newtons first law
kompoz [17]

Answer:

you want to know newtons first law here.

Explanation:

An object that is at rest stays at rest or stays in motion.

7 0
3 years ago
3. Which of the following magnetic scenarios will repel each
Nastasia [14]

Answer:

option C (1 and 4)

Explanation:

Like poles repel each other, unlike poles attract each other

7 0
3 years ago
Read 2 more answers
Because the time was the same for each segment you know the speed was the same for each segment
netineya [11]

Answer:

Market segmentation helps you send the right message, every time, by efficiently targeting specific groups of consumers.

Explanation:

3 0
2 years ago
Water can form large dewdrops in nature how would droplets made of vegetable oil instead of water be different
Natasha2012 [34]

Answer:d

Explanation: oil would form droplets but only tiny ones because it’s surface tension is lower than that of water

3 0
2 years ago
Read 2 more answers
2) Two ice skaters have masses m1 and m2 and are initially stationary. Their skates are identical. They push against one another
worty [1.4K]

Answer:

m_1 / m_2 = sqrt (1 / 2)

Explanation:

Given:

- Initial velocity of both skaters V_i = 0

- Velocity of skater 1 after push = V_1

- Velocity of skater  after push = V_2

- Distance traveled by skater 1 = s_1

- Distance traveled by skater 2 = s_2

- s_1 = 2*s_2

- Accelerations of both skaters to halt is equal

Find:

What is the ratio m1/m2 of their masses

Solution:

- Apply conservation of momentum for two skaters just before and after the push as follows:

                                              P_i = P_f

                                  0 = m_1*V_1 - m_2*V_2

- Evaluate:                 m_1 / m_2 = ( V_2 / V_1 )

- Apply Conservation of Energy on both skaters as follows:

- Skater 1:

                               0.5*m_1*V_1^2 = u_k*m_1*g*s_1

-Simplify:                      0.5*V_1^2 = u_k*g*(2*s_2)

- Skater 2:

                               0.5*m_2*V_2^2 = u_k*m_2*g*s_2

-Simplify:                      0.5*V_2^2 = u_k*g*s_2

- Divide the two energy equations for skaters:

                                    (V_1 / V_2)^2 = 2

                                    (V_2 / V_1)^2 = 1 / 2

- simplify:                     (V_2 / V_1) = sqrt (1 / 2)

-Hence from earlier momentum conservation results:

                                  m_1 / m_2 = ( V_2 / V_1 ) = sqrt (1 / 2)

6 0
3 years ago
Other questions:
  • Adding energy or increasing the speed of the particles at very low pressure in a solid would cause
    14·1 answer
  • What hormone is not related to stress
    7·1 answer
  • The largest stars are _____ times the mass of the Sun. 100 10,000 10 1,000The largest stars are _____ times the mass of the Sun.
    11·1 answer
  • A physics student of mass 51.0 kg is standing at the edge of the flat roof of a building, 12.0 m above the sidewalk. An unfriend
    12·1 answer
  • I still walk four blocks north three blocks east for black stuff and then two blocks west where is the students distance and wha
    15·1 answer
  • What is the scientific method in physics ? <br><br>grade 9​
    14·1 answer
  • The maximum gauge pressure in a hydraulic lift is 18.0 atm what is the largest size vehicle
    9·1 answer
  • A particle starts to move in a straight line with a velocity of 10 m/s
    15·2 answers
  • If you see something not being right on a project you are working-even if it isn't you doing the wrong thing-it is your ethical
    10·2 answers
  • Objects 1 and 2 attract each other with a electrostatic force
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!