nuclear chemistry
section 24.1 nuclear radiation
in your textbook, read about the terms used to describe nuclear changes.
use each of the terms below just once to complete the passage.
alpha particle gamma ray radioisotope
beta particles radiation x - ray radioactive decay
the discovery of the (1) radioactivity in 1895 by wilhelm roentgen opened a whole new field of research. among those who worked in this new field were pierre and marie curie. the curies discovered that some forms of matter give off (2) ____________, a combination of particles and energy. marie curie named this process (3) ____________. another term used to describe the process by which one element spontaneously changes into another element is (4) ____________. any isotope that undergoes such changes is called a(n) (5) radioisotope.
there are three common forms of radiation. one type is a form of energy known as (6) ____________. the other types of radiation consist of particles. the form of radiation containing the heavier particle is made up of helium nuclei called (7) ____________. the form of radiation containing the lighter particle consists of electrons called (8) ____________.
in your textbook, read about the discovery of radioactivity.
complete each statement.
9. wilhelm roentgen discovered the form of energy known as ____________.
10. the form of nuclear radiation that has the greatest penetrating power is the ____________.
11. when a radioactive nucleus gives off a gamma ray, its atomic number increases by ____________.
12. the three types of radiation were first identified by ____________.
13. each alpha particle carries an electric charge of ____________.
14. each beta particle carries an electric charge of ____________.
15. each gamma ray carries an electric charge of ____________.

Question

nuclear chemistry
section 24.1 nuclear radiation
in your textbook, read about the terms used to describe nuclear changes.
use each of the terms below just once to complete the passage.
alpha particle  gamma ray  radioisotope
beta particles  radiation  x - ray  radioactive decay
the discovery of the (1) radioactivity in 1895 by wilhelm roentgen opened a whole new field of research. among those who worked in this new field were pierre and marie curie. the curies discovered that some forms of matter give off (2) ____________, a combination of particles and energy. marie curie named this process (3) ____________. another term used to describe the process by which one element spontaneously changes into another element is (4) ____________. any isotope that undergoes such changes is called a(n) (5) radioisotope.
there are three common forms of radiation. one type is a form of energy known as (6) ____________. the other types of radiation consist of particles. the form of radiation containing the heavier particle is made up of helium nuclei called (7) ____________. the form of radiation containing the lighter particle consists of electrons called (8) ____________.
in your textbook, read about the discovery of radioactivity.
complete each statement.
9. wilhelm roentgen discovered the form of energy known as ____________.
10. the form of nuclear radiation that has the greatest penetrating power is the ____________.
11. when a radioactive nucleus gives off a gamma ray, its atomic number increases by ____________.
12. the three types of radiation were first identified by ____________.
13. each alpha particle carries an electric charge of ____________.
14. each beta particle carries an electric charge of ____________.
15. each gamma ray carries an electric charge of ____________.

Accepted Answer

# Brief Explanations:
(2) Radiation is a combination of particles and energy. (3) Marie Curie named the process of matter giving - off radiation as radioactivity. (4) Radioactive decay is when one element changes into another. (6) Gamma rays are a form of energy radiation. (7) Alpha particles are made of helium nuclei. (8) Beta particles are electrons. (9) Wilhelm Roentgen discovered X - rays. (10) Gamma rays have the greatest penetrating power. (11) When a radioactive nucleus gives off a gamma ray, its atomic number doesn't change (0). (12) Ernest Rutherford first identified the three types of radiation. (13) Each alpha particle has a charge of + 2. (14) Each beta particle has a charge of - 1. (15) Each gamma ray has a charge of 0.
# Answer:
(2) radiation
(3) radioactivity
(4) radioactive decay
(6) gamma ray
(7) alpha particle
(8) beta particles
(9) X - ray
(10) gamma ray
(11) 0
(12) Ernest Rutherford
(13) + 2
(14) - 1
(15) 0

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