Which element has a larger atomic number than silver (Ag)?
Pd
Cu
Ni
Hg
Answers
Answer:
Hg has a larger atomic number than silver.
Explanation:
The atomic number of all given elements
Ag = 47
Pd = 46
Cu = 29
Ni = 28
Hg = 80
According to Mendeleev's periodic table,
The elements are arranged in order of increasing atomic number.
Hg is comes after Ag in periodic table so the atomic number of Hg is greater than Ag.
Hence, Hg has a larger atomic number than silver.
Hg has a larger atomic number than silver. Option 4 is correct.
What is an atom?
The atom consists of matter that may be split without releasing electrical charges.
It's also the smallest unit of matter with chemical element features. As a result, the atom is the fundamental unit of science.
In the nucleus proton and the neutron is existing. The condition of the atom to be electrically neutral is that the number of the proton and electron should be the same.
The atomic number of all given elements
(Silver),Ag = 47
(Palladium),Pd = 46
(Copper),Cu = 29
(Nickel)<Ni = 28
(Mercury),Hg = 80
Hg has a larger atomic number than silver.
Hence, option 4 is correct.
To learn more about the atom refer to the link;
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A: Mechanical energy is converted to kinetic energy, which is then converted to potential energy.
B: Chemical energy is converted to thermal energy and electrical energy.
C: Electrical energy is converted to chemical energy and thermal energy.
D: Mechanical energy is converted to potential energy which is then converted to kinetic energy.
Answers
The correct answer is
B: Chemical energy is converted to thermal energy and electrical energy.
In fact:
- initially, the energy is contained in the molecular bonds of the glucose, inside the sugars that Anna is eating, and this energy is in the form of chemical energy
- Part of this energy is converted into the electrical energy that make the heart beating, and this energy is in the form of electrical energy
- The rest of the energy is converted into heat for the body, and this energy is in the form of thermal energy
Answer: B. Chemical energy is converted to thermal energy and electrical energy.
Explanation:
Answers
(mass of the elevator, kg) x (9.8 m/s²) x (9.0 m) Joules .
Answers
Answer:
The amount of energy added to rise the temperature Q = 17413.76 KJ
Explanation:
Mass of water = 52 kg
Initial temperature = 68 °F = 20° c
Final temperature = 212 °F = 100° c
Specific heat of water
Now heat transfer Q = m × C × ( -
)
⇒ Q = 52 × 4.186 × ( 100 - 20 )
⇒ Q = 17413.76 KJ
This is the amount of energy added to rise the temperature.
Answers
Answer:
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.
Explanation:
Answers
to another, conduction and convection need some material stuff
along the way, otherwise they don't happen.
There is no material stuff between the Sun and the Earth, so
the Sun's energy reaches us by radiation.
The Sun's energy reaches the earth by Radiation
Further explanation
Heat is the energy transfer of an object with the environment or other objects because of the temperature difference between the two.
Heat moves from high-temperature objects to low-temperature objects
The process of heat transfer has 3 types
- 1. Conduction, which is the transfer of energy that requires an intermediate medium and without the transfer of particles
- 2. Convection is the transfer of energy due to the movement of the particles
- 3. Radiation is the transfer of energy without an intermediate medium / through vacuum
Energy from sun to earth through its atmosphere is not through conduction because the atmosphere is a bad conductor. Whereas convection is not possible because the earth must be heated first. And conduction and convection cannot pass through vacuum
Heat transfer from the sun occurs because its energy is carried in the form of electromagnetic waves
Learn more
the type of heat transfer takes place when the furnace is up to an entire room
Convection is a mode of heat transfer
the sun transmits heat to Earth only by radiation
the process of convection
Keywords : heat, radiation, convection, conduction, sun