3 years ago

True or false, The atomic number of an element is a whole number that decreases as you read across each row of

Chemistry

1 answer:

torisob [31]3 years ago

5 0

Answer:

I believe it's false because the atomic number is the number of protons in the nucleus of an atom.

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How are the ion and isotope different from the atom?

puteri [66]

Ions have an extra or lost an electron. Isotopes have different numbers of neutrons.

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3 years ago

The type of seismic waves that arrive at the surface first and move by compressing and expanding the ground like an accordion ar

disa [49]

Answer:

p waves

Explanation:

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Calculate the percent dissociation of trimethylacetic acid in a aqueous solution of the stuff. You may find some useful data in

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3 years ago

Write the appropriate symbol for each of the following isotopes: (a) Z 11, A 23; (b) Z= 28, A= 64; (c) Z= 50, A =115; (d) Z= 20,

prohojiy [21]

Explanation:

Z = atomic mass of the element and , A = atomic mass of the element .

a) Z = 11, A = 23

Element = Sodium

symbol: ²³₁₁Na .

b) Z = 28, A = 64

Element = Nickel

symbol: ⁶⁴₂₈Ni .

c) Z = 50, A = 115

Element = tin

symbol: ¹¹⁵₅₀Sn .

d) Z = 20, A = 42

Element = Calcium

symbol: ⁴²₂₀Ca .

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3 years ago

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What volume of carbon dioxide gas at STP is required to produce 456.9g of lithium carbonate?

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Answer:

It would have to be around 9.8 volume

Explanation:

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