shirlval123 shirlval123

25-07-2021
Chemistry

contestada

An atom's first 2 energy levels are filled and there are 2 electrons in the third energy
level. It's atomic number is:

Respuesta :

nehemash nehemash

25-07-2021

Answer:

12

Explanation:

2+8+2=12

atomic no is the No of protons

Answer Link

trent008 trent008

25-07-2021

Answer:

Atomic number is 12.

Explanation:

Atomic number = electrons in filled shells + outermost electrons

= 2 + 8 +2

= 12

Answer Link

Otras preguntas

1) Mr. Rios bought a house in 1960 for $20,000. The value of the house increased by approximately 5% each year. Which of the following equations will give the v

A quiz has 5 true-false questions and 3 multiple choice questions with 4 options each. How many possible ways are there to answer the 8 questions? a. 48 c. 4024

Diane makes fruit punch with 3 cups of cranberry juice, 2 cups of mandarin orange juice, and 3 cups of watermelon juice. APPROXIMATELY what percentage of the pu

Study the political cartoon. Which statement best describes the cartoonist’s opinion of the Watergate crisis? A. The Watergate scandal will overwhelm the Nixon

a Starbucks coffee is $4.99. Tax 8.5%. What total cost of the coffee?

8. The soccer ball has a diameter of 9 inches. Find its volume.

itsme againhmmmpppppฅ^•ﻌ•^ฅฅ^•ﻌ•^ฅฅ^•ﻌ•^ฅ

List the parts of the gene-chromosome theory.

PLS HELP FAST rotations on the coordinate plane ........ why does nobody talk to circles?

5-7: Question Help A nursery owner buys 8 panes of glass to fix some damage to his greenhouse. The 8 panes cost $20.40. Unfortunately, he breaks 3 more panes w