Answer:
The correct option is: D.act as a Lewis base in water.
Explanation:
Ammonia is a hydride of nitrogen with the chemical formula NH₃. It is a colorless gas with a characteristic pungent smell. According to the VSEPR theory, it has a trigonal pyramidal structure.
In water, ammonia acts as a Lewis base due to the presence of lone pair on the nitrogen atom. Lewis bases are electron pair or lone pair donors.
Answer is: (3) 2–8–17–6.
1) This is ground state of sodum atom.
Electron configuration of sodium atom: ₁₁Na 1s² 2s² 2p⁶ 3s¹.
Atomic number of sodium is 11, it means that it has 11 protons and 11 electrons, so atom of sodium is neutral.
2) This is ground state of sulfur atom.
Sulfur electron configuration: ₁₆S 1s²2s²2p⁶3s²3p⁴.
Sulfur has six valence electrons (3s²3p⁴), in 3s orbital, two electrons are paired, in 3p orbital, two electrons are paired and two are unpaired.
4) This is ground state of arsenic atom.
Electron configuration of arsenic atom:
₃₃As 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p³.
Electron configuration represents an excited state : (3) 2–8–17–6
In an atom there are levels of energy in the shell and sub shell
This energy level is expressed in the form of electron configurations.
Writing electron configurations starts from the lowest to the highest sub-shell energy level. There are 4 sub-shells in the shell of an atom, namely s, p, d and f. The maximum number of electrons for each sub shell is
Charging electrons in the sub shell uses the following sequence:
1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁶, 5s², 4d¹⁰, 5p⁶, 6s², etc.
Determination of electron configurations based on principles:
According to Niels Bohr, electrons surround the nucleus of an atom on a path called the electron shell. Each shell has an energy level. The further from the core, the higher the energy level
Maximum electrons of shells :
The maximum number of electrons in each shell can be formulated = 2n² (n = shell number)
Electrons can move the shell up or down by releasing energy or absorbing energy
Excited electrons show higher electron transfer to the shell by absorbing energy
So it can be concluded that there are 2 conditions :
Ground state is the state of electrons filling skins with the lowest energy levels.
Excited state is the state of electrons which occupy a higher energy level
The state of excited electrons can be seen from the presence of electrons which do not fill the skin completely but fill the skin afterwards
From the electron configuration , option 3 shows the excitation of one electron in the M shell towards the N shell, which should have a configuration in the ground state:
2–8–18–5
element X
electrons and atomic orbitals
about subatomic particles statement
Keywords: electron configurations, the shell of atoms, excited state
producers need more money to make and distribute goods.
companies raise prices to pass on costs to consumers.
the government prints more money and pushes prices up.
Hyperinflation can occur when the government prints more money and pushes prices up. Hence option d is correct.
Hyperinflation is defined as based on a price growth threshold of, by one definition, 50% each month, and, by another, 1000% per year. If hyperinflation continues, people start to store perishable goods like milk and bread. The economy crumbles as these requirements become scarcer and more expensive. People lose savings as cash loses value.
Hyperinflation is caused by a country's money supply growing quickly, frequently as a result of a government creating more and more currency. As more cash is made available, the value of each unit decreases, driving up costs. Money loses value when prices rise too much because it has less purchasing power due to inflation.
Thus, hyperinflation can occur when the government prints more money and pushes prices up. Hence option d is correct.
To learn more about hyperinflation, refer to the link below:
#SPJ6
Hyperinflation can occur when the government prints more money and pushes prices up.
If there are excessive and uncontrolled price increases in any economy, such economy will face situation called Hyperinflation.
in other words, any economy where the prices of goods and services have risen more than 50 percent a month over a certain period of time will experience hyperinflation.
Hyperinflation can occur if there is excess money in circulation. It commonly occurs when an economy is facing serious depression
Depression can be described as a period of a prolonged contracting economy. Any country facing a period of prolonged contracting economy will experience a negative growth rate.A good example of a negative growth rate is Recession.
Depression can last for many years and always result in the following:
Effects of hyperinflation
Hyperinflation will result in the devaluation of a country currency in the foreign exchange market and this will make the people minimize the holdings of the local currency and switching to more stable foreign currencies.
However, hyperinflation at some point occurred in some countries' economies.
Some of these countries include
LEARN MORE:
KEYWORDS: