Endothermic reaction is the answer.
Not exactly sure what 'phrase' you're hoping for. However, the charge on a methane molecule is fairly evenly distributed thus it does not have any dipoles; therefore it would be proper to describe the molecule as nonpolar, yet, I assume that is not the word you're looking for.
The stopper around the funnel reduced the amount of water that entered the bottle and so in the ten minutes the amount of water that entered the bottle did not reach the cotton wool to soak it.
Answer:
arsenic
Explanation:helium is a gas and aluminum is a etal and carbon is not a maetalloid
Explanation:
The fundamental particles in an atom are protons, neutrons and electrons. The given atoms are called the isotopes of magnesium. They only differ in the number of neutrons they possess.
Protons are the positively charge particles in an atom
Neutrons occupy the center of an atom with protons and they carry no charges
Electrons orbits an atom and they carry no charges.
For a neutral atom, the number of protons and electrons are the same.
Magnesium - 24
Magnesium - 25
Magnesium - 26
Magnesium is an atom on the periodic table with an atomic number of 12.
The atomic number is the number of protons in an atom.
The numbers in front of the problem given are the mass numbers.
For neutral atoms;
Number of protons = number of electrons = atomic number
Number of neutrons = Mass number - atomic number
Magnesium - 24
Protons = 12
Electrons = 12
Neutrons = 24 - 12 = 12
Magnesium - 25
Protons = 12
Electrons = 12
Neutrons = 25-12 = 13
Magnesium - 26
Protons = 12
Electrons = 12
Neutrons = 26 - 12 = 14
learn more:
Atomic numbers brainly.com/question/2057656
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