9. what is the isotope notation for thulium - 153?
a: mass #?
x: symbol?
z: atomic #?
10. what is the name of the element with atomic #37?
element name?
11. what is the symbol for the element with atomic #49?
element symbol?
12. what is the name of the element with the symbol ra?
element name?
13. what is the atomic number for titanium?
atomic number?
14. what is the isotope notation for a nucleus with 12 protons and 22 nucleons?
a: mass #?
x: symbol?
z: atomic #?
15. what subatomic particles are in an uncharged isotope with atomic number 100 and 257 nucleons?
#p+: # of protons?
#n^0: # of neutrons?
#e^-: # of electrons?

Question

Accepted Answer

# 9. Isotope Notation for Thulium - 153
## Brief Explanations:
- **Mass number ($A$)**: The mass number is given as $153$ (from thulium - 153).
- **Symbol ($X$)**: The symbol for thulium is $Tm$.
- **Atomic number ($Z$)**: Looking at the periodic table, the atomic number of thulium is $69$.

## Answer:
- $A:153$
- $X:Tm$
- $Z:69$

# 10. Name of Element with Atomic #37
## Brief Explanations:
By referring to the periodic table, the element with atomic number $37$ is rubidium.

## Answer:
Rubidium

# 11. Symbol for Element with Atomic #49
## Brief Explanations:
Consulting the periodic table, the element with atomic number $49$ is indium, and its symbol is $In$.

## Answer:
$In$

# 12. Name of Element with Symbol $Ra$
## Brief Explanations:
From the periodic table, the element with the symbol $Ra$ is radium.

## Answer:
Radium

# 13. Atomic Number for Titanium
## Brief Explanations:
Looking up titanium in the periodic table, its atomic number is $22$.

## Answer:
$22$

# 14. Isotope Notation for Nucleus with 12 Protons and 22 Nucleons
## Brief Explanations:
- **Mass number ($A$)**: Nucleons are protons + neutrons. Given $22$ nucleons, $A = 22$.
- **Symbol ($X$)**: The element with $12$ protons is magnesium ($Mg$).
- **Atomic number ($Z$)**: Number of protons is $12$, so $Z=12$.

## Answer:
- $A:22$
- $X:Mg$
- $Z:12$

# 15. Subatomic Particles in Uncharged Isotope with Atomic Number 100 and 257 Nucleons
## Brief Explanations:
- **Number of protons ($\#p^{+}$)**: Atomic number $Z = 100$, so $\#p^{+}=100$.
- **Number of neutrons ($\#n^{0}$)**: $n^{0}=A - Z$, where $A = 257$ (nucleons) and $Z = 100$. So $n^{0}=257 - 100=157$.
- **Number of electrons ($\#e^{-}$)**: In an uncharged atom, $\#e^{-}=\#p^{+}$, so $\#e^{-}=100$.

## Answer:
- $\#p^{+}:100$
- $\#n^{0}:157$
- $\#e^{-}:100$

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

9. Isotope Notation for Thulium - 153

Answer:

10. Name of Element with Atomic #37