cheyennearviso cheyennearviso

02-03-2021
Chemistry

contestada

Whats the atomic number for protactinium-231

Respuesta :

aishaalme7 aishaalme7

02-03-2021

Answer:

91

Fact box

Group Actinides 1572°C, 2862°F, 1845 K

Block f 15.4

Atomic number 91 231.036

State at 20°C Solid 231Pa

Electron configuration [Rn] 5f26d17s2 7440-13-3

Explanation:

Answer Link

Otras preguntas

What German leader militarized his country’s economy in the 1930s

Use synthetic division and the Remainder Theorem to find P(a) P(x)=x^4+3x^3-6x^2-10x+8 ; a=2 28 –16 2 4

5u exponent 7 - 21u exponent 7 Simply

Which ordered pair is the solution to the system of equations? -5x-3y=12 Y=x-12 (1,-11) (-6,6) (3,-9) (0,-4)

Will constructed a figure on a graph using coordinates: M(2,3),N (8,3),AND (5,2) How long is the line segment M N in Will's graph?

Help please thanks! I need an answer

Why are Noble gases inert? A. They cannot form bonds because they have 0 electrons in their valence shell. B. They are actually so reactive that they bond

Which political system emerged directly from world war 1

What is the difference of life and death?

The polar head of a phospholipid is made of _______ molecules. phosphate protein fatty acid carbohydrate