Chemistry
Chemistry, 24.09.2019 07:50, sbelgirl2000

Which of these statements are true? check all that apply.
a. elements that produce radiation for a long time have a slow decay rate.
b. half of the time until a substance is completely gone is the half-life.
c. elements with a quick rate of decay will only emit radiation for a short time.
d. the half-life of every element is the same.

answer
Answers: 2

Other questions on the subject: Chemistry

image
Chemistry, 22.06.2019 02:20, kristieroth1
Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is
Answers: 1
image
Chemistry, 22.06.2019 09:00, pinapunapula
Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.
Answers: 3
image
Chemistry, 22.06.2019 17:00, brownvester44
Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.
Answers: 2
image
Chemistry, 22.06.2019 22:30, medinajocelyn45
Which compound most likely has the greatest bond energy?
Answers: 2
Do you know the correct answer?
Which of these statements are true? check all that apply.
a. elements that produce radiation...

Questions in other subjects:

Konu
Mathematics, 08.09.2021 14:00