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Yakvenalex [24]
3 years ago
5

Identifying characteristics of atoms, using the periodic table, complete the table to describe each atom.

Chemistry
2 answers:
SpyIntel [72]3 years ago
7 0

A     4

B     6

C     Be

D     10

E     22

F     Ne

Explanation:

From the given table, we can simply complete the given table by identifying the meaning of each column header.

  • Number of protons in an atom is the number of positively charged particles in the nucleus of the atom. Protons are positively charged particles in an atom.
  • The number of neutrons are the number of neutrally charged particles occupying the nucleus of an atom.
  • Atomic number is another term for the number of protons in an atom.
  • Mass number is the sum of protons and neutron in an atom.
  • The symbol of an element is used represent a particular atom.

 Mass number = number of protons + number of neutrons

  Atomic number = number of protons = number of electrons in atoms.

learn more:

Mass number brainly.com/question/2597088

#learnwithBrainly

sladkih [1.3K]3 years ago
4 0

Answer:

A : 8

B : 8

C : O

D : 26

E : 30

F : Fe

Explanation:

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Dalton hypothesesized that atoms are indivisible and that all atoms of an element are identical. it is now known that
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i don't understand but atoms are made of electrons an protons and neutrons..

6 0
3 years ago
The number of protons plus the number of neutrons equals the _____.
Zanzabum

Answer: The number of protons plus the number of neutrons equals the atomic mass.

Explanation:

Atomic mass is defined as total number of protons and neutrons in the atom.

It is an average mass of an atom.

It is expressed in atomic mass unit that is a.m.u.

It is denoted with symbol 'A'.

 A =\text{number of protons + number of neutrons}.

6 0
3 years ago
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What is the empirical formula for a compound composed of 0.0683 mol of carbon ( C ), 0.0341 mol of hydrogen ( H ), and 0.1024 mo
liubo4ka [24]

The empirical formula for a compound composed of 0.0683 mol of carbon ( C ), 0.0341 mol of hydrogen ( H ), and 0.1024 mol of nitrogen ( N ) is  C_2HN_3.

<h3>What is the empirical formula?</h3>

An empirical formula tells us the relative ratios of different atoms in a compound.

Given data:

Moles of carbon = 0.0683 mol

Moles of hydrogen = 0.0341 mol

Moles of nitrogen = 0.1024 mol

Dividing each mole using the smallest number that is divided by 0.0341 moles.

We get:

Carbon= 2

Hydrogen=1

Nitrogen=3

The empirical formula for a compound isC_2HN_3.

Learn more about empirical formula here:

brainly.com/question/14044066

#SPJ1

4 0
1 year ago
Mica peels apart in parallel sheets because the chemical bonds between sheets are weak and the chemical bonds within sheets are
Makovka662 [10]
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7 0
2 years ago
What volume of 2. 5m naoh solution contains 3. 25 mol of naoh?.
Klio2033 [76]

Answer:

molarity = moles of solute/liters of solution

0.25 M NaOH = 0.25 mol NaOH/L

mass = moles (n) × molar mass (M)

n(NaOH) = 0.25 mol

M(NaOH) = 39.997 g/mol

m(NaOH) = 0.25 mol × 39.997 g/mol = 9.999 g 

3 0
2 years ago
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