Question 7 of 10
2 Points
How does one recognize a periodic trend on the periodic table?...
![subject](/tpl/images/cats/himiya.png)
Question 7 of 10
2 Points
How does one recognize a periodic trend on the periodic table?
O
A. Look for all elements with 2 electrons in any orbital.
O
BCompare an element's properties to the properties of a noble gas,
O
C. Look for predictable changes and patterns.
O
D. Find elements in random positions of the periodic table.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 02:40
The difference between the atomic number of an element and the element’s atomic mass is the number of ions.
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 06:30
The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 17:30
Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 02:00
What causes the appearance of lines in a emission spectrum
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 18:00
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 10.12.2020 18:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 10.12.2020 18:00
![question](/tpl/images/cats/fizika.png)
Physics, 10.12.2020 18:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 18:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 10.12.2020 18:00