danny6718 danny6718

16-01-2018
Chemistry

contestada

What is the total number of protons in the nucleus of calcium -42?

Relax

Respuesta :

skylajohnston skylajohnston

25-01-2018

Since the atomic number of calcium is 20. The number of protons is also 20.

Answer Link

Otras preguntas

Question 1 The term accessibility refers to the design of products, devices, services, or environments for _______.

Cell X has a resting potential of -80mV. If a ___________ open and causes the potential to change 10mV, the resulting potential will be ___________.

In order to test the implications of early emotional bonding, scientists have done testing on infant emotionality by separating animal babies from their natural

Select the excerpt that is an example of an MLA in-text citation with an attributive phrase. In 2001, a group of students and parents in Texas took a school dis

Suppose 58% of the registered voters in a country are Republican. If a sample of 536 voters is selected, what is the probability that the sample proportion of R

Consider a banking system where the Federal Reserve uses required reserves to control the money supply. (This was the case in the U.S. prior to 2008.) Assume th

Gianna is substituting t = 2 and t = 7 to determine if the two expressions are equivalent. 5 (2 t + 3) 5 t + 25 Which statement is true?

which verbal customer service skill avoids using terms and acronyms that won't mean much to people outside organization

What 3 major events in England in the 16th century brought about an atmosphere for a great period of literature

The trait approach, the behaviorist approach, and the biological approach a. are irreconcilable and contradictory views of human psychology. b. are all part of