Gamingirl9600 Gamingirl9600

03-08-2017
Chemistry

contestada

Calcium’s atomic number is 20. it forms ions with 18 electrons. what is the electrical charge of a calcium ion?

Respuesta :

Vannah123456789 Vannah123456789

04-08-2017

It would be a positive charge because it lost two electrons, if the charge was neutral it would be the same amount of protons and electrons, if the charge was negative the electrons would be 20 instead of 18. So in this case it is positive.

Answer Link

Otras preguntas

A restaurant has two pastry ovens. When both ovens are used, it takes about 3 hours to bake the bread needed for one day. When only the large oven is used, it t

what is the difference between a pentagonal prism and a pentagonal pyramid???????????

Evaporation: Large amounts of water evaporates from the Earth's ________, _______, __________ every day. The water vapor (evaporation) becomes part of the _____

Solve equation using square root property X2-8X+16=1

how do I solve 9 1/9 - 5/6

Compare and contrast an electromagnet and a permanent magnet.

Which substance does not obey the Lewis octet rule? (a) N₂ (b) NO (c) CF₄ (d) Ar Can anyone explain this?

Force and Motions: Pushes and pulls of all kinds are________.

2+3=8, 3+7=27, 4+5=32, 5+8=60, 6+7=72, 7+8=???????? SOLVE IT IF YOU CAN

Which of the following was not one of the four bodily humours? a) choler b) blood c) cholesterol d) black bile e) phlegm