Question
First: Identify the element from clue 16 ---- Period 6, Group 1. hint Cesium is answerName and Atomic number, please 2 points) Second: you must "cross a divide". When you land back on "solid ground" there is a silvery white metal with an average mass of 178.5 amu. From there --- add 7 protons! Identify the element and describe the final steps you used to solve this last clue! (4 points)
Answers
GPT-4o mini
To solve your clues, let's break it down step by step.
### First Clue:
You mentioned Period 6 and Group 1. In the periodic table, elements are arranged in rows (periods) and columns (groups).
- **Period 6, Group 1** corresponds to **Cesium (Cs)**.
- **Cesium** has an atomic number of **55**.
So, for your first question:
- **Element Name:** Cesium
- **Atomic Number:** 55 (2 points)
### Second Clue:
The next step is to "cross a divide" and find a silvery white metal with an average mass of 178.5 amu. After analyzing the periodic table, the element that fits this description is **Tantalum (Ta)**, which has an atomic mass of about 180.947 amu.
Now, you are instructed to "add 7 protons" to this element, which means you will find the element that is 7 places to the right of Tantalum on the periodic table:
- Tantalum (Ta) has atomic number 73.
- Adding 7 protons gives us: **73 + 7 = 80**.
The element with atomic number 80 is **Selenium (Se)**.
### Summary of Steps:
1. Identified the element for Period 6, Group 1 (Cesium, atomic number 55).
2. Determined the silvery white metal with an approximate mass of 178.5 amu (Tantalum, atomic number 73).
3. Added 7 protons to the atomic number of Tantalum (73 + 7 = 80), leading to selenium (atomic number 80).
### Final Answers:
- **Element** after adding 7 protons: **Selenium (Se)**
- **Steps to solve:** Crossed the divide from Tantalum (average mass 178.5 amu) and calculated the new atomic number by adding 7 to Tantalum's atomic number, leading to Selenium.
This gives you the answers needed for both parts of the question!
### First Clue:
You mentioned Period 6 and Group 1. In the periodic table, elements are arranged in rows (periods) and columns (groups).
- **Period 6, Group 1** corresponds to **Cesium (Cs)**.
- **Cesium** has an atomic number of **55**.
So, for your first question:
- **Element Name:** Cesium
- **Atomic Number:** 55 (2 points)
### Second Clue:
The next step is to "cross a divide" and find a silvery white metal with an average mass of 178.5 amu. After analyzing the periodic table, the element that fits this description is **Tantalum (Ta)**, which has an atomic mass of about 180.947 amu.
Now, you are instructed to "add 7 protons" to this element, which means you will find the element that is 7 places to the right of Tantalum on the periodic table:
- Tantalum (Ta) has atomic number 73.
- Adding 7 protons gives us: **73 + 7 = 80**.
The element with atomic number 80 is **Selenium (Se)**.
### Summary of Steps:
1. Identified the element for Period 6, Group 1 (Cesium, atomic number 55).
2. Determined the silvery white metal with an approximate mass of 178.5 amu (Tantalum, atomic number 73).
3. Added 7 protons to the atomic number of Tantalum (73 + 7 = 80), leading to selenium (atomic number 80).
### Final Answers:
- **Element** after adding 7 protons: **Selenium (Se)**
- **Steps to solve:** Crossed the divide from Tantalum (average mass 178.5 amu) and calculated the new atomic number by adding 7 to Tantalum's atomic number, leading to Selenium.
This gives you the answers needed for both parts of the question!