Question

A person is most likely to experience serious tissue damage when exposed to which of the following forms of electromagnetic radiation?

ultraviolet

gamma rays

radio waves

microwaves

Use the Heisenberg uncertainty principle to calculate the uncertainty (in meters) in the position of a honeybee weighing 0.78 gg and traveling at a velocity of 0.86 m/sm/s . Assume that the uncertainty in the velocity is 0.1 m/sm/s. Express your answer in meters to one significant figure.

What is the number of spherical nodes in a 3s orbital?

four

zero

two

three

How many unpaired electrons are there in the ground state of element C?

0

1

2

4

What is the ground-state electron configuration of Ti?

[Ar]4s23d2

[Ar]4s13d3

[Ar]4s24p64d1

[Ar]3d4

Which of the following does not have the same number of valence electrons?

Se

Te

Ge

Po

The element Tc has how many valence electrons?

2

1

7

3

Answer 1

1) gamma rays

2)3) spherical node= 2

1 дv = c-8 o-) - D- 08 4 м OX.JVF h Ukm дX - - 124х), 39 Чx 3-1ux p. x ), Тур - 086

4) impaired electron = 2

5) (a) is correct option

6)Ge

7) 7