CHEMISTRY MIDDLE SCHOOL

A helium nucleus is formed from hydrogen nuclei. What nuclear change has occured? a.) beta decay b.) none c.) alpha decay d.) nuclear fusion​

Answers

Answer 1
Answer:

Answer:

alpha decay

Hope this helps. :)

Related Questions

HELP ASAP 20 PTS!!!Fireworkium (Fw): This element has 15 protons and 15 electrons in its neutral atom. Toothium (T): This is a nonmetal with an average atomic mass number close to 19. Floatium (Fl): This is a gas that the aliens often use to fill balloons and blimps. It contains two protons in its nucleus.Breathium (Bt): This element is a nonmetal and has one less proton than an atom of Toothium and has an atomic mass close to 16 amu. Lightium (Lg): This is a gas that does not react with other elements. It glows when it is heated in a lamp or vacuum tube. It contains one more proton in its nucleus than Toothium. Rottoneggium (Re): This is a nonmetal with one less electron than Mustarium. It has a total of 16 electrons in its electron cloud. I honestly don't understand
How many atoms are there in 5.7 mol of Li?
What information could you use to determine the atomic number of an unknown elementthat has a mass number of 22?OA. number of ionsB. number of isotopesC. number of neutronsOD. number of electrons
All of the following are true about science except (2 points)it is a body of knowledge.it can be disproven by philosophy or religion.it is tested by many scientists over time.it uses the scientific method.
Can show some work for 4x = -12

Magnesium and bromine cation and anion

Answers

Answer:

Mg²⁺  cation

Br⁻ anion

Explanation:

Magnesium is present in group two of periodic table.

It is alkaline earth metal.

It has two valance electrons.

Thus by losing two valance electrons it  complete the octet. The common oxidation state of magnesium is +2.

The bromine is present in group seventeen.

It has seven valance electrons.

It is the member of halogen family.

To complete the octet bromine required one electron. By gaining the one electron it showed -1 oxidation state.

When bromine combine with magnesium both formed MgBr₂.

The one atom of Mg have +2 oxidation state while bromine have -1 that's why to make the overall compound neutral two bromine atoms combine with one atom of magnesium.

Which of the following is formed at a collision zone?Continental rift valleyVolcanic island chainMountain rangeDeep-ocean trench

Answers

all these landforms can be found at collision zones. they depend on which type of collision, though. there are oceanic-oceanic collision, oceanic-continental collisions, and continental-oceanic collisions. oceanic plates are dense and small, and continental plates are massive, but heavy. i hope this answer helped you.

Which element has atoms with the strongest attraction for electrons in a chemical bond?(1) chlorine (3) fluorine

(2) nitrogen (4) oxygen

Answers

fluorine by far has the greatest
answer: (3) fluorine...........

I need help with Number 63

Answers

Isotopes are variants of an element which have differing number of neutrons. So, yes, because all of them have the same atomic number, meaning they are all Mg, however they all have differing atomic masses meaning different number of neutrons.

What water activities might be easier to do in Lake Assal's salty water? What activities could be more difficult?

Answers

Swimming in the river would be easy because the salty water has a higher buoyancy hence one can easily swim and are less likely to sink. Water activities that involve drinking the water will cause immediate dehydration because the body will lose water through osmotic pressure.

Swimming would be hard, but since you float on the water, there is no need to swim.

How many moles of oxygen are required to react completely with 16.5 mol Al?

Answers

Answer:

12.4 mol O2

Explanation:

                                4Al +       3O2 -----> 2Al2O3

from reaction          4 mol        3 mol

given                    16.5 mol       x mol

x = 16.5*3/4 =12.4 mol    O2
Other Questions
.is a pot holder a conductor or a insulator
When butter is heated it melts and when that melted butter cools and solidifies the process called
Please help!!!!its due tomorrow !!!
A plant grows three inches in a month. Why is this a physical change?