oscraftoc
oscraftoc oscraftoc
  • 22-01-2021
  • Chemistry
contestada

an atom has atomic number 20, in which group and in what period is this atom located?

Respuesta :

mynameisjeff27362
mynameisjeff27362 mynameisjeff27362
  • 22-01-2021

Element: Calcium

Group: 2A/IIA(alkaline earth metals)

Period: 4

Ver imagen mynameisjeff27362
Answer Link

Otras preguntas

What is the place value of 9 on 4657398021?
Which part of a cell contains dna?
CD is a median of isosceles triangle ABC with legs AC and BC. Segments AD and DB are congruent. true or false?
Is greece next to an ocean
After which battle did abraham lincoln issue the emancipation proclamation? a. the battle of bull run b. the battle of vicksburg c. the battle of antietam d
There is one error in one of five blocks of a program. To find the error, we test three randomly selected blocks. Let X be the number of errors in these three b
Match the correct vocabulary word to the definition. 1. a story told from the perspective of the narrator who is usually part of the story where pronouns like "
Which word best completes the sentence? jamaal and _____ are exercising. a. i b. me
The table can be used to determine the solution of equations, 2x − 2y = 6 and 4x + 4y = 28.Which solution can be used to fill in both blanks in the table?A: (2,
(5x3) (2x3)=_____ ______7x3=_______ _______________x3=______