ibnsaleemm658 ibnsaleemm658

02-10-2020
Chemistry

contestada

PLEASE ASAP
A calcium atom has 20 protons, 18 electrons, and 20 neutrons. What is the charge on the atom?

Respuesta :

william77mallette william77mallette

07-10-2020

Answer:

Ca2+ represents an ion with 20 protons and 18 electrons.

Explanation:

A calcium atom has 20 protons and 20 electrons. The 2+ charge next to the symbol indicates a loss of two electrons: 20-2=18.

Answer Link

Otras preguntas

How can I make this claim a precise claim? Malala’s most important thing in what she said is that everybody should be able to go to school if they want to.

A new pencil was 18 cm long. Now it measures 12.7 cm. How many centimeters of the pencil have been used?

Need help with math question

According to the ipats model (notice the extra letter on the end), if an ecosystem's sensitivity is low, will the environmental impact be higher or lower than a

The suns mass is very small compared to earth true or false

Given the graph of a circle and a line, how many solutions to the system of equations exist? -no solutions -one -two -three

Need desperate help PLEASE

what is the sum of measurements of the interior angles of a 12-gon?

What is the quotient?

A farmer has 1600 yards of fencing to enclose a rectangular garden. Express the area A of the rectangle as a function of the width x of the rectangle. What is t