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Pie
3 years ago
11

A neutral atom in the ground state has four electrons in its fifth and outermost principal energy level. What element is it?

Chemistry
1 answer:
Zepler [3.9K]3 years ago
7 0

Answer:

Tin

Explanation:

Tin is an element which belongs to the carbon family in the periodic table. It lies in group 14 of the periodic table i.e. IV a.

The symbol of Tin is Sn. Tin has 50 electron in total. Its atomic number is 50. The 50 electrons of tin are divided in its five energy shells. The outer most or the valence shell contains 4 electrons in the ground state.

The number of electrons present per shell in tin is : 2, 8, 18, 18, 4.

The electronic configuration of tin is : [Kr] 4d¹⁰5s²5p²

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Define the term homeostasis
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Answer:

The ability and tendency of certain systems to maintain a relatively constant internal state in spite of changes in external conditions; this ability is achieved by the presence of feedback mechanisms which can adjust the state of the system to compensate for changes in the state caused by the external environment. It is exemplified in homeothermal biological systems, such as animals which maintain relatively constant blood temperature and composition in spite of variations in external temperature or the composition of the food ingested.

Explanation:

7 0
3 years ago
1) In 1.31 g of a chloride of titanium, there is 0.528 g of titanium. What is the empirical formula of this titanium chloride?
kozerog [31]

Answer:

TiCl2

Explanation:

Mass of the chloride of titanium= 1.31 g

Mass of titanium= 0.528 g

Therefore mass of chlorine = 1.31-0.528 = 0.782 g

To determine the empirical formulae of the titanium chloride, divide the mass of each element by its relative atomic mass and divide through by the lowest ratio.

Ti- 0.528/48 = 0.011, Cl- 0.782/35.5 = 0.022

Ti- 0.011/0.011 , Cl- 0.022/0.011

Ti- 1, Cl-2

Hence the required empirical formula is TiCl2

5 0
3 years ago
Identify the units used to measure volume mass.
Strike441 [17]

Answer:

The metric system uses units such as meter, liter, and gram to measure length, liquid volume, and mass, just as the U.S. customary system uses feet, quarts, and ounces to measure these.

Volume: 1 liter is a little more than 1 quart

Mass: 1 kilogram is a little more than 2 pounds

Length: 1 centimeter is a little less than half an

Explanation:

3 0
2 years ago
A neutralization reaction between an acid and a metal hydroxide produces
Vikki [24]

Answer:

A neutralization reaction between an acid and a metal hydroxide produces salt and water.

Explanation:

In a neutralization reaction, an acid and a base are combined according to the following example (hydrochloric acid and sodium hydroxide):

HCl + NaOH ---> H20 + NaCl

They are generated as products: water and a salt, in this case sodium chloride.

3 0
4 years ago
Which of the following describes a Brønsted-Lowry base?
Mice21 [21]
__ Brainliest if helped! 

Bronsted-Lowry definition of Bases are Proton acceptors, 

or i.e. "A hydrogen ion acceptor" 

4 0
4 years ago
Read 2 more answers
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