Mariaeugeniaferminre Mariaeugeniaferminre

02-11-2020
Chemistry

contestada

What is the symbol of the element that has a mass number of 140 with 82 neutrons?

Respuesta :

wiltedw wiltedw

07-11-2020

Answer:

Cerium-140 (Ce)

Explanation:

Cerium-140 has 52 protons and 82 neutrons and is stable.

Answer Link

Otras preguntas

NEED HELP PLS!!!!!!!!!!!! BRANLIEST+15 POINTS! A rectangle has a width that is 3 less than twice the length. If the rectangle has an area of 170 square inches,

why should we have open immigration?

!!!!!!PLEASE HELP!!!!! Five people arrange themselves to form a right triangle. If their total vertical height is 12 feet and their total horizontal length is 1

aging populations can be a problem for developing countries because

Rewrite the following logarithm. log⁡xy

Which sentence contains transition words that demonstrate a summary or conclusion

Which of the following mapping diagrams does not represent a function?

Which of the following best describes how most scientists think humans evolved?

Can anyone help me? Enter the missing numbers in the boxes to complete the table of equivalent ratios.

What percentage of students earning degrees in 2009 were awarded a professional degree?