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

Kristen lives directly east of the park. The football field is directly south of the park. The library sits on the line formed between Kristen’s home and the fo

Jean did 17 sit-ups on Monday, 19 sit-ups on Tuesday,and 22 sit-ups on Wednesday.If she continued at this rate, how many sit-ups would she do on Sunday ?

A person's intelligence quotient (i) is found by dividing mental age (m), as indicated by standard tests, by chronological age (c), and then multiplying this ra

Help please I need the name of the polygon and the perimeter and area of the shape of numbers 42-47

Metabolism is ______a. the sum of all vital processes by which food energy and nutrients are made to be available and used by the body.b. the sum of all vital p

what is thr principle of screw gauge

AREAS AND VOLUMES OF SIMILAR SOLIDS URGENT?

Combining like terms Simplify each expression 1.) -4x - 10x 2.) -r - 10r 3.) -2x + 11 + 6x 4.) 11r - 12r 5.) -v + 12v 6.) -8x - 11x 7.) 4p + 2p 8.) 5n + 11n 9

How did the civil war end

The longest side of an eye cute isosceles triangle is 8 cm round to the nearest 10th what is the smallest possible length of one of the two congruent sides