bucketofwaterd bucketofwaterd

01-10-2020
Chemistry

contestada

Identify the mass number of an ion with 20 protons, 22 neutrons, and 18 electrons.

Respuesta :

Nikeon202 Nikeon202

14-10-2020

Answer:

42

Explanation:

Relative mass = number of protons + number of neutrons

Relative mass = 20 + 22

Relative mass = 42

Answer Link

Otras preguntas

What's the other term for: lacking respect; scornful

Which chemical equation best describes the reaction of potassium metal with fluorine gas to form solid potassium fluoride? A. K(s) + F2(g) → KF2(s) B. K(s) + F(

Liz wants to drink 1.5 litres of water each day. She buys the water in packs of 6 bottles. Each bottle contains 0.5 litres of water. How many packs of water do

If X is the set of negative numbers and Y is the set of positive numbers, then the union of X and Y and 0 is the set of (A) all real numbers (B) all integers (C

If 2/5 of a number is added to 1/3 of the same number ,the sum is 22. What is the number?

If X is the set of negative numbers and Y is the set of positive numbers, then the union of X and Y and 0 is the set of (A) all real numbers (B) all integers (C

A sound wave of 70 cm travels 840 m in 2.5 sec. What is the velocity and frequency of sound?

How do we use the Pythagoras theorem in "everyday life".

What's the other term for: explosive or changing very quickly

What's the other term for: lacking respect; scornful