22wilkersoncurt 22wilkersoncurt

13-10-2017
Chemistry

contestada

To which period does the Lanthanide series belong? Actinides?

Respuesta :

genesisrod13ov1pr0 genesisrod13ov1pr0

13-10-2017

Lanthanide belongs to period 6, and actinides belongs to period 7

Answer Link

Otras preguntas

The expression −8x^3(7x^6 − 3x^5) is equivalent to: A. −56x^9 + 24x^8 B. −56x^9 − 24x^8 C. −56x^18 + 24x^15 D. −56x^18 − 24x^15 E. −32x^4

Sue purchased a dress that was marked 25% off. She paid $60 for the dress. What was the original price? I know it is $80, but how do you get there.

How do you solve the following equation: a/9.05=8.2

what is blank divided by three plus ten equal to fourteen

In the standard (x,y) coordinate plane, what are the coordinates of the midpoint of a line segment whose endpoints are (–3,0) and (7,4) ? A. (2,2) B. (2,4) C. (

If r = 9, b = 5, and g = −6, what does (r + b − g)(b + g) equal? F. −20 G. 0−8 H. 0 8 J. 19 K. 20

Will Mount Vesuvius erupt again, like it did in 79 AD?

If x = -5, then |x - 7| = A: -12 B: 2 C: 12 D: -2

If 9(x − 9) = −11, then x = ? A. -92/9 B. -20/9 C. -11/9 D. -2/9 E. 70/9

If xy = 144, x + y = 30, and x > y, what is the value of x – y ? F. 4 G. 6 H. 18 J. 22 K. 24