O Science Application: An atom consists of charged particles called
electrons and protons. Each proton has a charge of +1 and each
electron has a change of -1. Remember number of electrons is equal
to number of protons, while answering these questions
(a) What is the change on an atom?
(b) What will be the change on an atom fit loses an electron?
(c) What will be the charge on an atom if it gains an electron?

Evaluate 5 + 6 · 2 – 8 ÷ 4 + 7 using the correct order of operations. a. 22 b. 11 c. 27 d. 5

In a timed typing test lara typed 63 words per minute.estimate the number of words she should be able to type in half in hour show your work

Aresearch study is studying the effects of a new drug for osteoporosis alzheimer's disease (ad) for women above the age of 65 years. a group of individuals with osteoporosis is randomized into two groups. one group is treated conventionally, and the second group is treated with the new medication. assessments are made at 3, 6, 12, 36, and 48 months. the conventionally treated group is assessed for ad using a serum blood test, and the treatment group is assessed for ad using a pet radiotracer that binds to beta-amyloid plaques. in comparing these 2 trial arms, the authors of the study may encounter which type of bias? a. selection bias on the risk of developing b. measurement bias c. confounding bias d. recall bias e. lead-time bias