Answer:
The half life of an isotope is the time that an element take to reduce the half of the mass.
Explanation:
So for example,in the case of carbon 14, one gram takes 5730 years to reduce to 0.5 g, and then, it takes another 5730 years to be reduced to 0.250 g and so and so.
So depending the mass of the sample that you have, for example, a bone that weights 15 g, it will take 5730 years to have a mass of 7.5 g, and then 11, 460 years to have a mass of 3.75 g, and then 17,190 years to have a mass of 1.875 g, and so, and so.
Hope this info is useful.
Usted [morir, conseguir, pedir, sentirse, despedirse, vestirse] tú [conseguir, servir, morir, pedir, dormir, repetir] ellas [rep
Lina20 [59]
Usted - muere, consigue, (se) siente, (se) despise, (se) viste.
T<span>ú</span> - consigues, sirves, mueres, pides, duermes, repites.
Ellas - repiten, duermen, siguen, prefieren, mueren, sirven.
Nosotros - seguimos, preferimos, servimos, (nos) vestimos, (nos) depedimos, (nos) dormimos)
Ustedes - (se) sienten, (se) visten, consiguen, piden, (se despiden), (se) duermen)
<span>My name is Manolo, and brother's name is Federico. My mother Silvia is a teacher and teaches chemistry. She admires students because they work a lot. I study at the same university, but I don't take classes with mother. Federico Works in an office with my father. The office is in the center of Mexico City. Javier and Óscar are guys from Oaxaca. And you? How is it family?
Answer the question by describing yourself and your family. </span>
Answer:
I speak Spanish and these are the words you use so I hope you get help from these :)
Explanation:
Here you go!
Answer:
7:00 in the morning and Lucia still (2) in bed. Today (3) his first day of class at a new school and he has to (4) there at 8:00. Look out the window and (5) cloudy. Prepare quickly and at 7:30 and (6) ready. Lucia does not know where (7) the new school, but her father accompanies her by car. His new classmates (8) taking an exam, but the teacher tells them that they can greet Lucia. She thinks everyone (9) friendly. The new school (10) very large and has many students. Lucia (11) a little nervous, but (12) happy and believes that this (13) a good place to study. Finally, Lucia arrives home at six in the afternoon and (14) very tired, but she knows that the first day of school is always (15) difficult.
Explanation: