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
IgorLugansk [536]
3 years ago
11

What is the electron configuration of an element with atomic number 20? A. 1s2 2s2 2p6 3s2 3p5 B. 1s2 2s2 2p6 3s2 3p6 C. 1s2 2s2

2p6 3s2 D. 1s2 2s2 2p6 3s2 3p6 4s2 E. 1s2 2s2 2p6
Biology
1 answer:
zubka84 [21]3 years ago
6 0

Answer:

electron configuration is 2,8,8,2

Explanation:

1s2 2s2 2p6 3s2 3p6 4s2

You might be interested in
Zooplankton populations in Lake Erie and the Hudson River have declined by up to 70% since the arrival of zebra mussels because
sveticcg [70]

Answer:

Zebra mussels feed on phytoplankton, which zooplankton need as a food source.

Explanation:

The population of zooplankton in Lake Erie and the Hudson River declined due to the arrival of zebra mussels because Zebra mussels feed on phytoplankton, which is the main source food of zooplankton. So due to limited or scarcity of food in the environment, the zooplankton die due to hunger that leads to the decrease of population of zooplankton in that environment.

6 0
3 years ago
What is the immediate result of stopping glucose
Doss [256]
A decrease of ATP production in the Krebs cycle
7 0
3 years ago
In northeastern Narnia there is a creature known as a chromocat. It comes in three colors, blue, red, and purple. This trait is
andrey2020 [161]

Answer:

Genotype: all Bb

Phenotype: all purple

Explanation:

Blue color chromocat will have the genotype BB.

Red color chromocat will have the genotype bb.

If the two are crossed:

BB   x   bb = Bb, Bb, Bb and Bb

All the offspring will have a genotype of Bb.

A genotype of Bb has a phenotype color of purple.

Hence:

<em>The genotype of all the offspring will be Bb.</em>

<em>The phenotype of all the offspring will be purple.</em>

<em />

7 0
3 years ago
In Angiosperms, what structure assists the sperm in getting to the egg?
andreyandreev [35.5K]

It the style that helps the sperm in getting to the egg. Synergids in the ovule are also meant for the same


8 0
3 years ago
Which three elements make up most of the human body
Yuliya22 [10]

Answer:

C. C, H, O

Explanation:

The four most abundant elements in the human body – hydrogen, oxygen, carbon and nitrogen – account for more than 99 per cent of the atoms inside you. They are found throughout your body, mostly as water but also as components of biomolecules such as proteins, fats, DNA and carbohydrates.

6 0
3 years ago
Read 2 more answers
Other questions:
  • When diet and health are adequate, __________ is largely influenced by heredity. the onset of menarche height weight the onset o
    6·2 answers
  • A population of 40 killer whales lives in a bay that measures 2000 square miles. What is the population density of killer whales
    13·1 answer
  • Which type of organism creates the original source of energy for nearly every ecosystem on Earth?
    15·2 answers
  • What is the main difference between exocrine and endocrine glands?
    5·1 answer
  • Anybody can help me out<br> I think it's A but I want to be sure
    12·2 answers
  • For the plant to remain healthy how will the magnesium ions move
    6·1 answer
  • The picture below shows a lead sheet and a lead pipe.
    6·1 answer
  • Ts 1. What are five characteristics of a mineral?​
    5·1 answer
  • What part of the cell increases as the cell becomes smaller?
    10·1 answer
  • If the parent cell has 40 genes how many will each daughter cell have ?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!