All categories

2 years ago

An atom's Lewis dot structure has four dots. Which of the following elements could it be, and why?

Chemistry

2 answers:

Xelga [282]2 years ago

3 0

Answer: The correct answer is: 'Carbon, because it is in group 14 and has four valence electrons'.

Explanation:

Lewis dot structure are the structures which tells us the number of valence electrons around the nucleus of an atom in a molecule.

An atom's Lewis dot structure has four dots. For this Lewis structure, an atom of this element will be having 4 valence electron in its valence shell. And from the given option only carbon of group 14 have 4 valence electrons in its valence shell which means that given Lewis dot structure with four dots represents carbon atom.

Hence, correct answer is: 'Carbon, because it is in group 14 and has four valence electrons'.

Ivanshal [37]2 years ago

3 0

Answer:

carbon becacuse it is an alkaline earth metal in period 4

Explanation:

You might be interested in

If honey has a density of 1.36 g/ml what is the mass of 1.25 qt reported in kilograms

yawa3891 [41]

Answer;
1.6 kg.

Solution;
The density is 1.36 g/ml;

The volume is 1.25 qt
However; 1 qt = 946.35 ml

Mass is given by; density × volume;
= 1.25 qts × 946.25 ml/qt × 1.36 g/ml =1609 g
but; 1 kg = 1000 g
Hence the mass = 1609/1000 = 1.609 Kg or 1.61 (sig figs)

7 0

2 years ago

the mass of sample X is 20.0g. it was placed in a graduated cylinder and the water level rose from A to B. what is the density o

MatroZZZ [7]

Answer: 4.0 g/mL

Explanation:

The volume increased by 5.0 mL. Recall that the number of significant figures is equal to the number of certain values you can read plus one. Here, the volume increased from 14.0 mL to 19.0 mL, so the volume of X is 5.0 mL.

3 0

2 years ago

Please help!!

Phantasy [73]

1.
cost in cents

cost = 5m

2.
miles = c + 2

7 0

2 years ago

Read 2 more answers

What does it mean for a backyard ecosystem to have a low diversity

pantera1 [17]

It means there is a lot of the same thing and not many others

3 0

2 years ago

Identify the precipitate(s) formed when solutions of na2so4(aq), ba(no3)2(aq), and nh4clo4(aq) are mixed.

Lostsunrise [7]

Answer : BaS $O_{4}$ will be the precipitate which will be formed.

Explanation : When all the three solutions namely; $NaSO_{4} + Ba(NO_{3})_{2} + NH_{4} ClO_{4}$ are mixed together a white precipitate of BaS $O_{4}$ is formed as a product in the solution along with the soluble by product of Ammonium nitrate which is $NH_{4} NO_{3}$

7 0

2 years ago