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3 years ago

Why would an unstable radioactive isotope (nuclide) emit a beta particle (high energy electron)?

Chemistry

1 answer:

sasho [114]3 years ago

4 0

Answer:

A)It has too many neutrons

Explanation:

Electrons are emitted from the nucleus when a neutron is converted to a proton, an electron and a neutrino. This process is popularly known as beta emission. It reduces the neutron-proton ratio of a nuclide. The neutrino is a particle of zero mass and zero charge that carries off the excess energy and balances spins.

The loss of an electron from the nucleus occurs when there are too many neutrons in the nucleus. The process of beta emission usually reduces the number of neutrons in an atom thereby decreasing the neutron-proton ratio.

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A student observes the chemical process described by this equation:

choli [55]

Answer:

Both are equal

Explanation:

Mass of starting material i.e Aluminium is $4.480 * 10^{-23}$ grams

The weight of oxygen is $2.65 * 10^{-23}$

There are 4 atoms of aluminium and 3 atoms of oxygen

Thus, the total mass of starting material is

$4 *$ mass of one atom of aluminium $+ 6 *$ mass of one atom of oxygen

$4 * 4.480 * 10^{-23} + 6* 2.65 * 10^{-23}$

$35.1 * 10^{-23}$ grams

Mass of new substance is also equal to

$4 *$ mass of one atom of aluminium $+ 6 *$ mass of one atom of oxygen

$4 * 4.480 * 10^{-23} + 6* 2.65 * 10^{-23}$

$35.1 * 10^{-23}$ grams

5 0

3 years ago

A mineral is described as "metallic." This description refers to its:

abruzzese [7]

Answer: properties

Explanation:

The element which has the properties

Mallablity

Ductility

Lusterous

High electric. Conductivity

High tensile strength is said to be metal.

8 0

3 years ago

Arrange the following elements in order of increasing ionization energy

Gnoma [55]

Ionization Trend: First ionization energy will increase left to right across a period and increase bottom to top of a family (column).

A) Sr, Be, Mg are all in column 2 of the periodic table. Based on the first ionization rule above, from increasing to decreasing energy, the order is: Be, Mg, Sr

B) Bi, Cs, Ba are all in the same row of the periodic table. Based on the first ionization rule above, from increasing to decreasing energy, the order is: Bi, Ba, Cs

C) Same rule as above. Order is: Na, Al, S

8 0

3 years ago

How does bias in the data affect experimental results?

PilotLPTM [1.2K]

D. Biased data is likely skewed for or against some variable tested, meaning it isn't an honest study.

5 0

4 years ago

Read 2 more answers

Bombardier beetles inject boiling hydrogen peroxide, or H2O2, into their victims. It then decomposes into hydrogen and oxygen ga

victus00 [196]

I hope u got ur answer right

4 0

3 years ago