According to its location in the periodic table:
- Ge: Period 4, Group 14. Metalloid.
- Se: Period 4, Group 6, Non-metal.
- Be: Period 2, Group 2, Metal.
<h3>What is a periodic table?</h3>
It is a table in which elements are ordered in Groups (columns) and Periods (rows).
According to their ubication and properties they can be classified in:
- Metals: occupy the left and center of the table.
- Metalloids: occupy the right of the table (dark green in the attached table).
- Non-metals: occupy the right of the table (yellow and light green in the attached image).
Let's locate and classify the following elements:
- Germanium: Period 4, Group 14. Metalloid.
- Selenium: Period 4, Group 6, Non-metal.
- Beryllium: Period 2, Group 2, Metal.
Learn more about the periodic table here: brainly.com/question/14514242
The aluminum can with stand <span>0.942 J° C of heat </span>
Answer:
An electron will jump to a higher energy level when excited by an external energy gain such as a large heat increase or the presence of an electrical field, or collision with another electron.
Explanation:
hope it helps you
Answer: final temperatures will be
a) water 21 C
b) concrete 20.005 C
c) steel 20.008 C
d) mercury 53 C
Explanation:
Change in temp dT = dH / (mass x specific heat)
Specific heat of these materials can be found from many sources:
water = 1 kcal / kg C
concrete = 210 kcal / kg C
steel = 114 kcal / kg C
mercury = 0.03 kcal /kg C
So dT (water) from 1 kcal heat into 1 kg water = 1 kcal / (1 kg x 1 kcal/kg C) = 1 C therefore the final temperature is 20 + 1 = 21 C
But dT (steel) = 1 kcal / (1kg x 114 kcal/kg C) = 0.008 C so the final temperature is 20 + 0.008 = 20.008 C
The results for concrete and mercury are calculated in the same way
