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3 years ago

What particles make up the atomic nucleus

Chemistry

2 answers:

musickatia [10]3 years ago

5 0

The necleus f an atom is make up of protons and neutrons (two types of baryons) joined by the neclear force.

White raven [17]3 years ago

4 0

The particles that make up the atomic nucleus of all atoms are both protons and neutrons.

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Neutral atoms contain equal numbers of A protons and electrons. B protons and neutrons. C electrons and neutrons. D protons, ele

Verdich [7]

Answer:

For 1: The correct answer is Option A.

For 2: The correct answer is Option B.

For 3: The correct answer is Option C.

Explanation:

For 1:

Atomic number is defined as the number of electrons or number of protons that are present in a neutral atom. It is represented as Z.

Z = Atomic number = Number of electrons = Number of protons

Mass number is defined as the sum of number of protons and number of neutrons present in an atom. It is represented as A.

A = Mass number = Number of protons + Number of neutrons

Hence, the correct answer is Option A.

For 2:

The isotopic representation of an atom is: $_Z^A\textrm{X}$

where,

Z = Atomic number of the atom

A = Mass number of the atom

X = Symbol of the atom

We are given:

An isotopic representation of beryllium atom: $_4^9\textrm{Be}$

Thus, the number '4' represents the atomic number of beryllium, number '9' represents the mass number of beryllium atom.

Hence, the correct answer is Option B.

For 3:

In CO compound:

Mass of oxygen = 16 g

Mass of carbon = 12 g

In $CO_2$ compound:

Mass of oxygen = 32 g

Mass of carbon = 12 g

Thus, the ratio of mass of oxygen in $CO_2$ and CO is:

$CO_2:CO=32:16=2:1$

Hence, the correct answer is Option C.

3 0

3 years ago

In humans these organs are part of a lager system the ___ system?

trasher [3.6K]

Answer:

B) digestive

Explanation:

8 0

2 years ago

Read 2 more answers

I need help in thiss

Papessa [141]

I know CL is chlorine and NA is sodium.

8 0

2 years ago

In which state(s) of matter are the particles free to move at Gut relative to one another?

Colt1911 [192]

The answer is gas only.
hope this helps!

8 0

2 years ago

When a parent has alleles for a dominant trait, what traits show up in the offspring?

Effectus [21]

Try putting this in biology category not chemistry so more ppl can help :)

4 0

3 years ago