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

A block of mass 3 kg slides down a frictionless inclined plane of length 6 m and height 4 m. If the block is released from rest at the top of the incline, what

Can someone explain lesson 6.3 math boxes in everyday math regarding the missing numbers on the number lines

the rectangles on a quilt are 2in. wide and 3in. long the perimeter of each rectangle is made by pattern of ref thread. if there are 30 rectangles in the quilt,

A boy can swim 75 feet in 12 seconds. What is his rate to the nearest mile per hour?

Checking daughter's homework and need help! Miguel ordered a party try of sandwiches for a birthday party. During the party, the quests left 2/5 of the sandwi

given: quadrilateral ABCD with ∠A= ∠C and BD the bisector ∠ABC prove: DB bisects ∠ADC

The sales tax rate is 8%. Estimate the tax on a jacket that costs $69.95.

A test cross with an organism with a homozygous recessive genotype results in 50% of the offspring exhibiting the recessive trait. What is the genotype of the t

the rectangles on a quilt are 2in. wide and 3in. long the perimeter of each rectangle is made by pattern of ref thread. if there are 30 rectangles in the quilt,

How many prime numbers are there between 56 and 100?