Answer : The radiation which is smallest in the size is, Gamma radiation.
Explanation :
Alpha particle : It is also known as alpha radiation or alpha ray that consists of 2 protons and 2 neutrons that are bound together into a particle that is identical to the helium nucleus. It is produced in the process of alpha decay.
Beta particle : It is also known as beta radiation or beta ray. During the beta decay process, a high energy and speed electron or positron are emitted by the radioactive decay of atomic nucleus.
Gamma particle : It is also a gamma radiation or gamma ray that is arising from the radioactive decay of atomic nuclei. It has shortest wavelength waves and imparts high photon energy can pass through most forms of matters because they have no mass.
The increasing order of the particle size of the alpha, beta and gamma particles will be :
Gamma particle < Beta particle < Alpha particle
Hence, the radiation which is smallest in the size is, Gamma radiation.
True
False
Answer: The answer is False (No). All helium atoms have 2 protons in their nucleuses (nuclei). If an atom has only 1 proton it its nucleus, then it is a hydrogen atom. (it behaves like other hydrogen atoms, not like a helium atom.)
Answer:
FALSE
Explanation:
The answer is False (No). All helium atoms have 2 protons in their nucleuses (nuclei). If an atom has only 1 proton it its nucleus, then it is a hydrogen atom. (it behaves like other hydrogen atoms, not like a helium atom.)
Equivalent conversions:
1 atm = 760 mm Hg = 101.325 kPa
Dalton’s law is presented inthis formula, P = p1 + p2 + … +pn where p1, p2 to pn are the pressures of theindividual gases and the P is the total pressure.
Let p1 = CO2, p2 = O2 and p3 =N2
p1 = 125mmHg (1 atm/760 mmHg) =0.1645 atm
p2 = 22 kPa (1 atm/101.325 mmHg)= 0.2171 atm
P = p1 + p2 + p3
1.5atm = 0.1645 atm + 0.2171 atm+ p3
p3 = N2 = 1.1184 atm
2) compound because the proportion of its atoms can vary
3) mixture because the proportion of its components is fixed
4) mixture because the proportion of its components can vary
Answer:
4) mixture
Explanation:
The answer is 4) because salt water has 2 properties which are salt and water. Never the less the amount of salt or water you keep adding the substance would always remain as salt water.
TRUE
FALSE
Answer:
FALSE
Explanation:
The claim that ancient philosophers did not conduct experiments or detailed observations is false. Philosophers like Aristotle made extensive contributions to biology through observation, and Hellenistic scholars conducted early forms of experimental research.
The statement that ancient philosophers discussed the world around them but did not do any experiments or detailed observations is FALSE. While it is true that some ancient philosophers, particularly in the early stages of Greek philosophy, were more speculative in nature, others, such as Aristotle, engaged in detailed observations and can be considered early scientists. For example, Aristotle conducted extensive studies on biology, classifying a vast number of species and making observations on their life cycles, habits, and anatomy.
Throughout history, methodologies have varied, and while the ancient philosophers didn't conduct experiments in the modern sense, they did employ various forms of inquiry to understand the world. Furthermore, in the Hellenistic period, scholars at institutions like the Library of Alexandria did indeed conduct forms of research that could be seen as experimental, such as Eratosthenes estimating the Earth's circumference.
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