azytduogamer azytduogamer
  • 08-12-2020
  • Chemistry
contestada

What 3 properties did Mendeleev write on his cards to organize 63 elements?

Respuesta :

Аноним Аноним
  • 08-12-2020
He wrote each element's melting point, density, atomic mass, and color on cards. The atomic mass of an element is the average mass of all the isotopes of that element. He tried arranging them in different ways.
Answer Link

Otras preguntas

When antibodies are produced by lymphocytes, the body is conducting adaptive, passive, or innate immunity.
5c + 3 -2c + 5 simplify the expression
A nondurable good lasts for less than three years when used on a regular basis.
A hypothesis is a possible explanation or answer to a question. Hypotheses should be testable. Which of the following sentences is the best hypothesis? A. If
Constantine was named for the emperor Noble
While skateboarding at 19 km/h, Alana throws a tennis ball at 11 km/h to her friend Oliver. If Alana is the reference frame, the speed of the tennis ball is
Which sentence uses punctuation correctly? a. The teenagers played football, after the rain stopped. b. After the rain stopped, the teenagers played football.
historians have regarded the American revolution as being of world wide importance because
What event in 1911 focused attention on the need to protect factory workers?
Sarah wrote the expression 12 ÷ 3 = 4 to represent the number of flowers in each row of Mrs. White’s garden. What is the number 12 in the expression?