Analyze the information. oxygen-15 is an isotope that has an atomic number of 8. based on the information, select the answer choices that are true statements. (select all that apply.) a. oxygen-15 has 8 protons b. oxygen-15 has 7 electrons c. oxygen-15 has 8 neutrons d. oxygen-15 has 7 neutrons

Option (A) and (D) are correct.

Explanation:

Atomic number means the number of protons holded by an atom. On the other hand, atomic mass means the sum of total number of protons and neutrons holded by an atom.

For example, in an isotope of oxygen as oxygen-15 with an atomic number 8 means that there are 8 protons.

So, number of neutrons present in oxygen-15 will be as follows.

                    Atomic mass = no. of protons + no. of neutrons

                            15 = 8 + no. of neutrons

                    no. of neutrons = 15 - 8 = 7

Hence, this isotope of oxygen atom has 8 protons and 7 neutrons.

answer: wheres the options

explanation:

events in order:

1.       vishnu schist

2. zoroaster granite

3. bass limestone

4. hakatar   shale

5. igneous intrusion

6. shinumo quartzite

7. dox sandstone

8. tapeats limestone

9. bright angel shale

10. muav limestone

11. temple butte limestone

12. redwall limestone  

nonconformity

answer: the unkar group shows angular unconformity because the layers are turned at angle.

unconformity

answer: specifically the angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled. an angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled.

disconformity

answer: the disconformities aremarked irregular lines between the sedimentaryrocks layers.