All radioactive nuclides undergo what

Answers

Answer 1

Answer: They undergo nuclear fission.

Related Questions

Who thought everything was made from fire,earth,air and water
In what state of matter do the particles spread apart and fill all the space availble to them?a)energyb)liquidc)solidd)gas
Carbon-11 is used in medical imaging. The half-life of this radioisotope is 20.4 min. What percentage of a sample remains after 60.0 min?34.013.05.2871.22.94
Which of the following can only be separated into two or more pure substances by a chemical change?a. an element b. a compound c. a homogeneous mixture d. a heterogeneous mixture
To find the atomic mass of a particular atom you need to knowa. the number of protons. b. the number of neutrons. c. the number of protons and neutrons. d. simply what element the atom belongs to.

Helpp chemistry ..........

Answers

Half-life is the time it takes for the radioactive material's mass to decrease by half.

So, half of 96 is 48
half of 48 is 24
half of 24 is 12
half of 12 is 6

96->48->24->12->6

You count how many arrows (->) there is.
Which is 4

Then you use the 12 minutes the question gave you to do:
12 divided by 4
= 3

So, one half-life (Or the time it takes for the radioactive material's mass to decrease in half) is 3 minutes

and every 3 minutes it will decrease by half.

As an atom becomes an ion, its mass number(1) decreases(2) increases(3) remains the same

Answers

As an atom becomes an ion, its mass number $\boxed{\left( 3 \right){\text{ remains the same}}}$

Further explanation:

The smallest unit of an element is called an atom. It is also known as the building block of matter. An atom is generally represented as $_{\text{Z}}^{\text{A}}{\text{X}}$ , where X is the symbol of the element, A is its atomic mass or mass number and Z is its atomic number.

The number of protons present in the atomic nucleus is termed as the atomic number (Z) whereas the total number of nucleons present in the nucleus of an atom is called mass number or atomic mass (A).

When electrons are either gained or lost from the neutral atom, it results in the formation of ions. Cations are the positively charged ions that are formed due to the removal of electrons from the neutral atom. Anions are the negatively charged ions that result from the addition of electrons to the neutral atom.

Since the formation of either type of ion requires gain or loss of electrons but mass number is the total number of protons and neutrons present in the atomic nucleus, the mass number remains the same when ions are formed from their respective ions. Therefore option (3) is the correct answer.

Consider an example of a sodium atom whose atomic number is 11 so it has an electronic configuration of $1{s^2}2{s^2}2{p^6}3{s^1}$ . It loses one electron to form its monovalent ion, ${\text{N}}{{\text{a}}^ + }$ which has the configuration of $1{s^2}2{s^2}2{p^6}$ . The number of electrons in Na is 11 while that in ${\text{N}}{{\text{a}}^ + }$ is 10. But both the species have same number of protons and neutrons in them. So the mass number remains unchanged if an atom forms its ions.

Learn more:

1. Component of John Dalton’s atomic theory: brainly.com/question/2357175

2. Basis of investigation for the scientists: brainly.com/question/158048

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Atomic structure

Keywords: atom, matter, atomic nucleus, proton, electron, neutron, cations, anions, Na, 11, Na+, electronic configuration.

Becoming an ion involves gaining or losing electrons
Electrons have a relative mass of 0
So adding or removing them doesn't change the mass of the atom
So the answer is (3) remains the same

Which of the following gases has the highest average molecular velocity at 25 °C? H2O He
HCl
BrF
NO2

Answers

Answer:

Step-by-step explanation:

A postulate of the Kinetic Molecular Theory is that at a given temperature, the average kinetic energy of the molecules is directly proportional to the Kelvin temperature.

KE = ½ mv² ∝ T

mv² ∝ T Divide each side by T

v² ∝ T/m

If T is constant.

v² ∝ 1/m Take the square root of each side

v ∝ 1/√m

This is an inverse relationship, so the molecules with the smallest molecular mass should have the highest average speeds.

A helium molecule has the smallest mass, so helium has the highest average molecular velocity.

Use the mole concept to calculate the number of atoms that are in a 1.75-mol sample of CHCl3.

Answers

This is how I got to that answer. Since we don't know how many atoms there are in a mole, we use the number 6.02 x 10^-23. Now, just plug in what you have in the equation:

1.75 moles ChCl3 x (6.02 x 10 ^-23) / 1 mole = 1.0535 x 10^-22 atoms.

When two balls collide, the momentum of the balls after the collision is explained by?

Answers

Answer:

(m1+m2)v

Explanation:

where m1 is the mass of the first body

m2 is the mass of the second body

v is the velocity

Ammonia is a weak base because it produces ___ ions in solution

Answers

only a few ions (in comparison to others that totally break apart)

Other Questions

How many grams are in 2.3 moles of calcium phosphate, Ca3(PO3)2

3. Rank each of the following in order of DECREASING atomic radiusa. Cl, Br, Ga

The electron configuration 1sÆ 2sÆ2pÒ 3sÆ3pÒ represents which noble gas?

Giving brainliest if correct!! please help someone out?