fseftrwer4378

02.09.2019 • 

Chemistry

Which of the following statements is not true of using electron dot diagrams?
a. the element's group number provides a clue about the number of valence electrons.
b. an element with eight valence electrons is chemically unstable.
c. dots should be placed one at a time on each side of the chemical symbol.
d. an atom is chemically stable if all dots are paired.

Ответ:

naeaamm6981

02.01.2022

Chemistry

---

B is the false one. Cause an element with 8 valence electrons is chemically stable. Ex. Argon

---

0,0(0 оценок)

Ответ:

kcombest2979

10.04.2022

Chemistry

---

Remove the parentheses from the equation:

Combine like terms:

The greatest common factor (GCF) of both terms is 8, so we can divide the entire expression by 8 and move it outside parentheses:

The simplified form of this expression is 8(r - 1).

---

0,0(0 оценок)