2 years ago

All atoms of an element have the same number of ________. electrons neutrons protons protons plus neutrons

Chemistry

1 answer:

Cloud [144]2 years ago

6 0

Answer:

protons

Explanation:

An element, by definition, always has the same number of protons. Sodium, element 11, has 11 protons. Anything with 11 protons is a sodium atom, regardless of the number of neutrons, electrons, or politicians.

You might be interested in

Food is heated up in a microwave. The heat transfer used in a microwave is

azamat

Radiation

hope that helped!

6 0

2 years ago

Read 2 more answers

A fossil was analyzed and determined to have a carbon-14 level that is 70 % that of living organisms. The half-life of C-14 is 5

Citrus2011 [14]

Answer: 2948

Explanation:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

$t_{\frac{1}{2}}=\frac{0.693}{k}$

$k=\frac{0.69}{t_{\frac{1}{2}}}=\frac{0.693}{5730}=1.21\times 10^{-4}years^{-1}$

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $1.21\times 10^{-4}years^{-1}$

t = age of sample = ?

a = let initial amount of the reactant = 100

a - x = amount left after decay process = $\frac{70}{100}\times 100=70$

$t=\frac{2.303}{1.21\times 10^{-4}}\log\frac{100}{70}$

$t=2948years$

Thus the fossil is 2948 years old.

5 0

2 years ago

Which of the following interactions would be the strongest?

shepuryov [24]

Answer:

i think is c,my ans will not be 100%correct

7 0

3 years ago

Which of the following will have the lowest boiling point?

mash [69]

Answer: C

Explanation:

3 0

3 years ago

Read 2 more answers

Describe how a baseball player accelerates as he runs around the bases after hitting home run

Wewaii [24]

<span>he accelerates when he runs away from home plate. as he reaches each base, the player accelerates by changing direction. he accelerates again when slowing down after reaching home plate.</span>

4 0

3 years ago