SAT2 which of the following radioactive processes when occurring separately ,must alter the atomic number of the radioactive nucleus?1,alpha decay2,beta decay3,gamma decayA,1B,2C,3D,1,2F,1,2,3

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/15 15:03:30
SAT2whichofthefollowingradioactiveprocesseswhenoccurringseparately,mustaltertheatomicnumberoftheradi

SAT2 which of the following radioactive processes when occurring separately ,must alter the atomic number of the radioactive nucleus?1,alpha decay2,beta decay3,gamma decayA,1B,2C,3D,1,2F,1,2,3
SAT2
which of the following radioactive processes when occurring separately ,must alter the atomic number of the radioactive nucleus?
1,alpha decay
2,beta decay
3,gamma decay
A,1
B,2
C,3
D,1,2
F,1,2,3

SAT2 which of the following radioactive processes when occurring separately ,must alter the atomic number of the radioactive nucleus?1,alpha decay2,beta decay3,gamma decayA,1B,2C,3D,1,2F,1,2,3
D
alpha decay:the nucleus loses 2 protons and 2 neutrons,so the atomic number is changed (reduced by 2).
beta decay:the most common form is that the nucleus loses an electron,so the the atomic number increases by 1.
Gamma decay:a nucleus changes from a higher energy state to a lower energy state through the emission of electromagnetic radiation (photons).The number of protons (and neutrons) in the nucleus does not change in this process,so the parent and daughter atoms are the same chemical element.

翻译:下列哪种放射性过程发生时,一定会改变放射性核素的原子序数。1.2.3分别是阿尔法,贝塔,伽马衰变。从高中物理知识我们知道,只有发生阿尔法衰变时,才一定会改变原子序数。

D. 1,2
alpha decay releases an alpha particle, which consists of two protons and two neutrons, therefore alpha decay will decrease the atomic number by two.
beta decay releases a beta particle...

全部展开

D. 1,2
alpha decay releases an alpha particle, which consists of two protons and two neutrons, therefore alpha decay will decrease the atomic number by two.
beta decay releases a beta particle, which is an electron, as a result of a neutron turning into a proton. threfore beta decay will increase the atomic number by one.
gamma decay releases a photon, and does not change atomic number.

收起

Which of the following has the greatest value?A.1.73^999 B.2^799 C.3^500 D.4^400 E.250^100SAT2 MATHEMATICS SAT2化学which of the following is not a state function?A Tempetatute B density c work D volumn E pressure 一道sat2数学题,the only prime factors of a number 'n' are 2,5,7,and 17.which of the following could not be a factor of a)10 b) 20 c) 25 d)30 e)34 SAT2 which of the following radioactive processes when occurring separately ,must alter the atomic number of the radioactive nucleus?1,alpha decay2,beta decay3,gamma decayA,1B,2C,3D,1,2F,1,2,3 英语翻译Write a three page essay in which youdiscuss the importance of vision in motivating employees and the success orfailure of various styles of leadership in different situations.Include concepts and content of vision,thethree-act process fo 又一道急需解决的SAT2 Math If f(x)=X^2-3x+4,which of the following is an approximation of f(f(f(3+7/8)))?正答:1223.21 sat2数学求解a plane cuts through a cube in such a way that the plane passes through three of the cube's vertices, no two of which lie on the same edge. if the edge of the cube has a length of 1, what is the surface area of the smaller fragment of SAT2化学中的一道题,Of the following compounds,which has the highest boiling point?(A) CH3-CH3(B) CH3-CH2OH(C) CH3-COOH(D) CH3-COH(E) H2S上述几个如何通过化学键比较?(答案是E) SAT2 主要是题干不懂--------------------------------------------------------------------------------42.Which of the following expresses the polar point (3,) in rectangular coordinates?(A) (–1.7,–3.14) (B) (–0.87,0.5) (C) (1.5,3.14) (D) ( SAT2物理的一道题,有关气体的If the volume of a gas is decreased while its temperature is held constant,which of the following will occur?(A)The average kinetic energy of the molecules of the gas will increase(B)The average kinetic energy of 英语翻译Integral ControlThe integral control analyses the effect of the roll stack eccentricity on measurable mill parameters,such as roll force,and builds up a correction which may be applied to the roll force cylinders in order to compensate fo 英语翻译asindividuals accept themselves more fully,they often become more accepting ofothers.This is the opposite of self-alienation,which occurs when we fail toacknowledge or accept certain aspects of ourselves.We then feel thesequalities are fo 英语翻译asindividuals accept themselves more fully,they often become more accepting ofothers.This is the opposite of self-alienation,which occurs when we fail toacknowledge or accept certain aspects of ourselves.We then feel thesequalities are fo The Christmas PresentElizabeth took part in one fo ghe families which had lost everything 一些JAVA问题,初学者需要讲解?1.Programming involves four general phases that the programmer moves into and out of during the development of a program. The order in which the programmer moves through these phases is generally which of the fo 英语翻译Spring and fall are two ( )when many people catch a cold( ).Why can't the scientists find a cure fo the ( The answer is easy.There are( )of cold viruses out there.You never knwo which one you will( ),so there isn't a cure fo each one0 Whe SAT2物理题,貌似是有关理想气体的.直接原题了.A sample of an ideal gas is heated,doubling its absolute temperature.which of the fllowing statements best describs the result of heating the gas A.The root-mean-square speed of the gas mol SAT2 MATH2 问题A delicatessen charges for a certain type of salad at a rate of 2 dollars for the first half-pound and 75cents for each additonal half-pound.Which of the following exressions represents the total charge,in cents for p pounds of the