1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nlexa [21]
3 years ago
13

Potassium (K) and copper (Cu) are both in period 4. They both have _____.

Biology
1 answer:
Virty [35]3 years ago
5 0

Answer:A): four electron shells

Explanation:

In the period table, atoms are arranged in rows called periods and columns called groups. The arrangement of atoms in groups is based on the number of their valence electrons while the arrangement of atoms across the periods is based on their number of electrons shells. Atoms are arranged across the periods in increasing order of their atomic number i.e., according to their number of electrons. Potassium has 19 electrons while copper has 29 electrons. Both has four electrons shells according to their electronic configuration.

You might be interested in
Biotic and abiotic a moth immediately
Natasha_Volkova [10]

Answer:

moth is biotic

Explanation:

biotics are living things

7 0
3 years ago
If the amoeba is being viewed with a low power microscope with a 4.5 mm field of view, what is the estimated longest length of t
snow_tiger [21]

Answer:

sorry me not know

Explanation:

8 0
3 years ago
A Church spire in a form of a regular hexagonal pyramid whose base edge is 8ft and whose altitude is 75ft is to be painted at a
ollegr [7]
Given:
base edge - 8 ft
altitude or height - 75 ft

Surface area = [(3√3)/2] a² + 3a[√h² + (3a²/4)]
S.A = 2.6*8² + 3(8) * √75² + [(3*8²)/4]
S.A = 166.4 + 24 * √5625 + 48
S.A = 166.4 + 24 * √5674
S.A = 166.4 + 24 * 75.33
S.A = 166.4 + 1807.92
S.A = 1974.32 ft²

convert square feet to square yard.

1 sq ft = 0.1111 sq yd

1974.32 ft² * 0.1111 sq.yd/sq.ft = 219.35 sq yd.

22 per sq. yard

219.35 sq. yard * $22/sq.yd = $4,825.70

Total cost is $4,825.70
5 0
3 years ago
Read 2 more answers
Dose having yeast infection make one feel pain during sex?​
S_A_V [24]

Answer:

Explanation:

Having sex with a yeast infection can be very painful or, at best, extremely uncomfortable. If your labia or vulva are swollen, you may find skin-to-skin contact to be too rough. Friction may even rub the skin raw. Penetration can aggravate inflamed tissue, as well as increase itching and irritation

3 0
3 years ago
Suppose that a plant diease kills all the fruit . The change could become a on the birds
VikaD [51]
The change is harsh on birds. Food supplies goes down and birds can become ill from the disease
6 0
3 years ago
Other questions:
  • The graph above was made by a South American biologist in the country of Brazil, after a long study on parrots. About 200 years
    13·2 answers
  • Which does NOT affect a molecules ability to cross a cell membrane?
    11·2 answers
  • If the Polymerase Chain Reaction process or PCR were a machine, what kind do you think it would it be? A a printer B a shredder
    13·2 answers
  • What are two basic differences between DNA and RNA?
    6·2 answers
  • What is the function of the tomato pulp cell? Also, do they have chromosomes?
    6·1 answer
  • Which of the following statements is false?
    13·2 answers
  • Answering by analyzing this picture.
    7·2 answers
  • A species is a group of organisms so similar to one another that they can breed and produce fertile offspring. True or False.
    15·1 answer
  • 1. How could a water molecule be transferred and transformed through the water cycle over millions of years? Record your evidenc
    11·1 answer
  • The enzyme that travels along the leading strand assembling new nucleotides on a growing new strand of dna is?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!