Question

this element is directly below the element that has 49 protons in its nucleus. this element has 2 fewer protons than tennessine (ts). the atomic number of this element is 34. this element directly below the element that has an atomic number of 52. this element has 113 electrons surrounding its nucleus this element has one less proton than arsenic (as). this element has 114 protons in its nucleus the atomic number of this element is 31. this element is directly above the element whose atomic number is 87. this element has 49 protons in its nucleus. this element has 2 fewer electrons than bromine (br) this element is a noble gas with an 86 protons in its nucleus. this element has 50 electrons surrounding its nucleus.

Explanation:

Step1: Recall element - proton relationship

The number of protons in an element's nucleus is equal to its atomic number.

Step2: Analyze each statement

Statement 1:

The element with 49 protons is Indium (In). The element directly below it in the periodic - table has an atomic number 49 + 18=67, which is Holmium (Ho).

Statement 2:

Tennessine (Ts) has an atomic number of 117. An element with 2 fewer protons has an atomic number of 117 - 2 = 115, which is Moscovium (Mc).

Statement 3:

An element with an atomic number of 34 is Selenium (Se).

Statement 4:

The element with an atomic number of 52 is Tellurium (Te). The element directly below it has an atomic number 52+18 = 70, which is Ytterbium (Yb).

Statement 5:

The number of electrons in a neutral atom is equal to the number of protons. An element with 113 electrons (and thus 113 protons) is Nihonium (Nh).

Statement 6:

Arsenic (As) has an atomic number of 33. An element with one - less proton has an atomic number of 33 - 1=32, which is Germanium (Ge).

Statement 7:

An element with 114 protons is Flerovium (Fl).

Statement 8:

An element with an atomic number of 31 is Gallium (Ga).

Statement 9:

The element with an atomic number of 87 is Francium (Fr). The element directly above it has an atomic number 87 - 32 = 55, which is Cesium (Cs).

Statement 10:

The element with 49 protons is Indium (In).

Statement 11:

Bromine (Br) has an atomic number of 35. An element with 2 fewer electrons (and thus 2 fewer protons) has an atomic number of 35 - 2 = 33, which is Arsenic (As).

Statement 12:

A noble gas with 86 protons is Radon (Rn).

Statement 13:

An element with 50 electrons (and thus 50 protons) is Tin (Sn).

Answer:

1. Holmium (Ho)
2. Moscovium (Mc)
3. Selenium (Se)
4. Ytterbium (Yb)
5. Nihonium (Nh)
6. Germanium (Ge)
7. Flerovium (Fl)
8. Gallium (Ga)
9. Cesium (Cs)
10. Indium (In)
11. Arsenic (As)
12. Radon (Rn)
13. Tin (Sn)