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4 years ago

Compare the properties of protons neutrons and electrons

2 answers:

6 0

Protons are positively charged. Neutrons have no charge. Electrons have a negative charge. Protons and neutrons are in the nucleus. Electrons revolve around the nucleus.

meriva4 years ago

3 0

Electrons are negatively-charged particles and are found outside the nucleus of the atom, They interact with other electrons of other atoms that result to different properties of atoms. They also determine the charge of the atom, or more preferably, the ion. For a neutral atom, they have the same number as that of the protons. Protons are positively-charged particles and are found inside the nucleus along with the neutrons. Protons and neutrons are collectively called nucleons. Protons determine the atomic number of the atom. Neutrons, on the other hand, are neutrally-charged particles and are found inside the nucleus. Along with the proton, they constitute the mass of the whole atom. Atoms of the same element but with a different number of neutrons are called isotopes.

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What is the geometry name for PF5? Is PF5 polar or non-polar?

KonstantinChe [14]

Geometry name is trigonal bypyramidal

non-polar

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3 years ago

Kia is doing an experiment in science lab. She is given a beaker containing 100 g of liquid. The beaker has markings on the side

Semmy [17]

Kia's remaining water has a mass of 50g. You can set it up as a proportion knowing that 100ml of water has a mass of 100g and thus 50ml of water would weight 50g

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3 years ago

Read 2 more answers

A student submits the following work on the mass number, but he has made a few mistakes. Select the sentences that are incorrect

rewona [7]

Answer

Calculating the mass number for an atom requires that we know the atomic number and the number of protons in the atom’s nucleus. The mass number then gives us the average weight of atoms of a given element. However, as long as the number of protons equals the number of neutrons, the values balance out and we always obtain a whole number for the mass number.

Explanation:

those 3

7 0

3 years ago

Using the reaction C12H22O11 + 12 O2 ->12CO2 + 11H2O (e). How many grams of carbon dioxide can be produced from 456.7g sucros

klio [65]

Answer:

704.6 g CO2

Explanation:

MM sucrose = 342.3 g/mol

MM CO2 = 44.01 g/mol

g CO2 = 456.7 g sucrose x (1 mol sucrose/MM sucrose) x (12 moles CO2/1 mol sucrose) x (MM CO2/1mol CO2) = 704.6 g CO2

7 0

3 years ago

385 J of heat are needed to heat a piece of aluminum from 22°C to 45°C. If the specific heat of Al is 0.90 J/g°C, what is the ma

VikaD [51]

Answer:

M of Al=33.09g or 0.0331kg

Explanation:

Heat Energy= specific heat*mass*change in temperature

H=M*C*T

make M subject of the formula

M=H/CT

M=685J/0.90J/g°C*(45°C-22°C)

M=685J/0.90J/g°C*23°C

M=685J/20.7J/g

M=33.09g or 0.0331kg

4 0

3 years ago