Helpful tips

Which has maximum e M ratio?

Which has maximum e M ratio?

Overall the highest value of e/m ratio is for H+ ion.

Which among the following has maximum value of e m?

As, the mass of hydrogen ion is the least in the given options, so its specific charge (e/m ratio) will be the maximum. Hence, the correct option is option 3.

What is the ratio of E M?

The CODATA recommended value is −e/me = −1.75882001076(53)×1011 C⋅kg−1. CODATA refers to this as the electron charge-to-mass quotient, but ratio is still commonly used.

Which has maximum specific charge H+ D+?

For D+ charge is one and the mass is also two, thus ratio is 0.5. For H+ charge is one and the mass is also one, thus ratio is 1. For He2+, charge is two and mass is four, thus ratio will be 0.5. Therefore, the maximum charge to mass ratio​ is of H+.

How do you calculate the hydrogen Em ratio?

Alpha particle is a helium nucleus which consists two protons and two electrons. It has +2 charge and the mass of four protons. So the alpha particle has the least E/M because of its large mass. You can see that its E/M is equal to 1/2 time E/M of a proton.

Which of the following species has maximum charge to mass ratio?

Thus, we can conclude that hydrogen has maximum charge to mass ratio.

Which of the following have maximum energy?

The order of increasing energy of the subatomic orbitals is senergy in excited state is more than that in the ground state. Since option (c) is in an excited state, therefore it has maximum energy .

How is Em ratio calculated?

Take the weighted average of the two values of e/m obtained by using the formula: e/m = w 1(e/m) 1 + w 2(e/m) 2.

Why is Em ratio of anode not constant?

The different gases have different types of positive rays,that contain particles of different mass and charge. Therefore, the charge to mass ratio of anode depends on the gas. This ratio is not constant.

Who calculated the weight of an electron?

Historically, the mass of the electron was determined directly from combining two measurements. The mass-to-charge ratio of the electron was first estimated by Arthur Schuster in 1890 by measuring the deflection of “cathode rays” due to a known magnetic field in a cathode ray tube. It was seven years later that J. J.

Which has highest specific heat?

Water has the highest specific heat capacity of any liquid. Specific heat is defined as the amount of heat one gram of a substance must absorb or lose to change its temperature by one degree Celsius.

Is there a limit to how much you can contribute to your HSA?

For 2021, the self-only contribution limit is $3,600, and the family contribution limit is $7,200. If your coverage was self-only, you’d multiply $3,600 by 8/12 for a prorated contribution limit of $2,400.

How much is tax deductible for HSA contributions?

For example, if you have $50,000 in taxable income and make a $3,600 deductible contribution to an HSA, you will be taxed on only $46,400 in income due to your contribution. The specific amount you save due to your HSA contribution will depend both on how large your contribution is and on your tax rate.

What are the rules for health savings accounts?

CONTRIBUTION RULES. • For 2018, $3,450 for individuals with self-only coverage and $6,900 for individuals with family coverage. • Individuals who are age 55 or older may make an additional $1,000 “catch-up” contribution.

When do you become eligible for a HSA contribution?

Under the full-contribution rule, an individual is treated as HSA-eligible for the entire calendar year for purposes of HSA contributions, if he or she becomes covered under an HDHP in a month other than January and is HSA-eligible on Dec. 1 of that year.