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Andre45 [30]
3 years ago
6

Why do all atoms of an element have the same atomic number, although they may have different mass numbers?. What do we call atom

s of the same element with different mass numbers?
Chemistry
1 answer:
3241004551 [841]3 years ago
7 0
The isotopes of an element differ in the number or neutrons whereas the number of protons or electrons of a neutral atom stays the same. The molar mass of the element is based on the percent abundances of different isotopes and the individual molar mass of each isotope. 
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Be sure to answer all parts. Acetone is one of the most important solvents in organic chemistry. It is used to dissolve everythi
Kazeer [188]

Answer:

Half life = 79.67 sec

Explanation:

Given that:

k = 8.7\times 10^{-3}\ s^{-1}

The expression for half life is shown below as:-

t_{1/2}=\frac{\ln2}{k}

Where, k is rate constant

So,  

t_{1/2}=\frac{\ln2}{8.7\times 10^{-3}\ s^{-1}}

t_{1/2}=114.94252\ln \left(2\right)\ sec=79.67\ sec

Half life = 79.67 sec

6 0
3 years ago
Which pair of elements is MOST likely to chemically combine and form ionic bonds?
Hoochie [10]
The answer is letter c
3 0
3 years ago
Wich reason is the best for choosing the ruler to measure the dimensionof tbe wooden block
enyata [817]
It will always produce a near-exact measurement
7 0
4 years ago
Write the chemical symbol for three different atoms or atomic cations with 22 electrons
damaskus [11]

Answer:

Explanation:

To write the chemical symbol for an atom or cation with 22 electrons, we must understand some few things about an atom.

An atom is made up of positively charged paticles called protons which are located in the nucleus. The neutrons do not have any charges and are they reside together in the nucleus with the protons.

Electrons are negatively charged particles which orbits the nucleus.

Titanium in its neutral state is the 22nd element on the periodic table and it has 22 electrons.

Vanadium is the the 23rd element on the periodic table. If it loses an electron, it becomes positively charged and it is a cation.

Chromium is the 24th element on the periodic table. A loss of two electrons makes the net electrons remaining on it 22.

The symbols are:

       ₂₂Ti

        ₂₃V¹⁺

        ₂₄Cr²⁺

6 0
4 years ago
10 points please help
Tasya [4]
I imagine it would be absorbed?
5 0
3 years ago
Read 2 more answers
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