ACMS1FAN ACMS1FAN
  • 03-09-2019
  • Physics
contestada

20. I am a noble gas with 2 electrons.
21. I am the 2nd most abundant element in the
Earth's crust and have 14 neutrons.​

Respuesta :

vegangamer102
vegangamer102 vegangamer102
  • 03-09-2019

Answer:

20.helium

21.silicon

hope this helps :)

Answer Link

Otras preguntas

What basic form of energy is present in blowing wind?
9.2 Multiplying and Factoring Polynomials 8m ( m+6 )
I need this solved step by step
Which of the following is the smallest? amino acids peptides polypeptides proteins
Which of the following is an example of a fixed expense? A earnings B utilities C groceries D rent
In William Wordsworth's poem "I Wandered Lonely as a Cloud," who is the speaker? A. a cloud drifting over a valley B. a daffodil swaying in the breeze
what number must you add to complete the square x^2+4x=15
How did Gandhi commemorate the 11th anniversary of the Amristar Massacre? A. Led a march to South Africa to fight apartheid B. Led a march to London to negotia
A lake that is protected from receiving the runoff from a cultivated field is likely to remain a healthy ecosystem. Please select the best answer from the ch
What is the minimum amount of water you should drink every day.A.0.5 literB.1 literC.2 litersD.3 liters