The scientific notation for 8,950,000 is
8.95 × 10^6
Answer:
Average atomic mass of chlorine is 35.48 amu.
Explanation:
Given data:
Percent abundance of Cl-35 = 76%
Percent abundance of Cl-37 = 24%
Average atomic mass = ?
Solution:
Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) / 100
Average atomic mass = (76×35)+(24×37) /100
Average atomic mass = 2660 + 888 / 100
Average atomic mass = 3548/ 100
Average atomic mass = 35.48 amu
Average atomic mass of chlorine is 35.48 amu.
Answer:
Cl-S-Si-Na-Mg
Explanation:
The elements want to have eight electrons in their outmost shell so that they are stable. Chlorine (Cl) is the one that has greatest tendency to accept an electron since it has 7 electrons, so it only needs one more to have a full shell and be stable, Sulfur (S) has 6 electrons, so it needs 2 more to have an outmost full shell, Silicon (Si) has 4 electrons in its outmost shell, so it needs 4 more to be stable, sodium (Na) has 1 electron in its outmost shell, so it needs 7 electrons, and Mg has 2 electrons in its outmost shell.
0 J
Work = Force * Displacement
Since displacement is 0 m (object isn't moving), work would also be 0.
